To select the desired input elements with the "checkbox" type, you can use the selector ':checkbox'. Example:

where handler- a handler that is called when change events

Working with the jQuery Callbacks Object: Using a List of Callbacks

The Callbacks object in jQuery allows you to create something like a list inverse functions, which will be executed when the fire() utility method is called. In this case, when calling the fire() method, it is possible to pass some argument that will be used by each callback function. How it works, we will analyze now with a few examples.

We catch the loss of focus. blur() method in jQuery

The blur() method in jQuery allows you to assign a handler to a specific element on the page, which will be called as soon as the focus is lost from this element. Initially, this event was mainly related to form elements - input tags, however latest versions browsers are able to handle this event for almost all kinds of DOM elements.

Insert content before the content of the selected object. before() method in jQuery

The before() method in jQuery allows you to insert specific content or objects before the content of each of a set of specified objects.
The method syntax is simple:

1	.before(content, )

Second variation:

1	.before(function)

jQuery. attr() method. How to get or add an attribute to an element

jQuery makes it very easy to access the attributes of the desired element, either by retrieving its value or, conversely, by setting and modifying it. For such manipulations, the attr() method is used.

The .appendTo() method in jQuery. Adding content to the end of elements

The appendTo() method essentially performs the same task as the append() method. The difference, by and large, is only in the syntax. If for append() we specify the desired selector by adding this method to it, where we indicate in brackets what exactly needs to be added to the end of the contents of the specified object, then for appendTo() what needs to be added is no longer in brackets as a method parameter, but just before the method itself as the object on which appendTo() is called. The difference will be better understood with the following example.

jQuery .animate() Method: Animate Images, Text, and Whatever

The .animate() method allows you to create animation effects using the css properties of the objects themselves. The method has two variations with different number of passed parameters

Video conversion with Movavi

Recently, in order to make good use of the time taken by the road to and from work, I try to download more files into my phone in advance. useful videos rollers. The phone is on Android, and most recently faced a problem when the smartphone for some reason refused to play video in AVI format. Whether the player is weak, or the specifics of the operating system - I don’t know. However, the problem did not have to be solved for a long time: I found a fairly functional video converter on the network, which is able not only to convert it from one format to another, but also to prepare a file taking into account the characteristics of your device. Here a brief description of how to use this wonderful program.

As I promised earlier, in this tutorial you will learn how to horizontally align the content of any HTML tag on a page without using the deprecated align attribute. As you may have guessed, we will again use styles (CSS), or rather our favorite style attribute.

So, to align the content of an HTML element, you need to assign one of the following values ​​to the style attribute:

• text-align:center- Align each line to the center of an element, such as a paragraph.
• text-align:left- Each line is flush against the left side of the element (this is the default).
• text-align:right- Each line is pressed against the right side.
• text-align:justify- Alignment immediately to the left and right sides of the element. Will explain. Typically, an element, such as a paragraph, has one side of the text always flat, and the other side is “torn”, since the lengths of the lines are slightly different. And when we use the value text-align:justify , then each line is evenly distributed in width. If necessary, the browser adds additional spaces between words, and the first and last word of the line is always pressed to the corresponding sides, so the block is even on both sides.

Tag content alignment example

Center title.

Center paragraph.

Result in browser

Center title.

The text of the paragraph is pressed to the right.

Center paragraph.

In general, horizontal alignment only applies to block tags and table cells (more on that later). Although, on the other hand, even if you try, you will not be able to apply it to built-in (inline). Why? Remember we recently learned that the width of an inline element is equal to its content? Accordingly, it turns out that this very content simply has nowhere to align and the browser will simply ignore your "art". :)

Homework.

1. Create a heading for the article, two of its sections, and one subsection in the first section. And let the title of the article is located in the center of the page.
2. Set the font for the whole page to Arial and all headings to Times and let them be in italics.
3. Set the text color of the article title to #FF6600, sections to #6600FF, and leave the subsection unchanged.
4. Write one paragraph under each heading, and the text of each of them should take up at least three lines when viewed in a browser.
5. Align the second paragraph to the center, the third to the right, and the fourth to both.

Hello! Continuing to learn the basics HTML language. Let's see what you need to write to align the text to the center, width or edges.

Getting down to business, let's look at how to make text center three in HTML different ways. The last two are related directly to the style sheet. It can be a CSS file that is connected to the pages of the site and sets their appearance.

Method 1 - work directly with HTML

In fact, everything is quite simple. See example below.

Align the paragraph to the center.

If you want to move the text fragments in a different way, then instead of the “center” parameter, enter the following values:

• justify - align text to the width of the page;
• right - on the right edge;
• left - on the left.

By analogy, you can move the content that is in the headers (h1, h2), container (div).

Method 2 and 3 - using styles

The design presented above can be slightly transformed. The effect will be the same. To do this, you need to write the code below.

Text block.

In this form, the code is written directly into the HTML for alignment text content in the center.

Is there some more Alternative option to achieve result. You will need to do a couple of things.

Step 1. In the main code, write

Text material.

Step 2. In the included CSS file, enter the following code:

Rovno (text-align:center;)

I note that the word "rovno" is just the name of a class that can be called differently. This is left to the discretion of the programmer.

By analogy, in HTML, you can easily center the text, justify it, and align it to the right or left of the page. As you can see, there is far from one option to achieve the goal.

Just a few questions:

• Are you doing an informational non-commercial project?
• Do you want your site to rank well in search engines?
• Do you want to earn income online?

If all the answers are positive, then just look at the integrated approach to website development. The information will be especially useful if it works on the WordPress CMS.

I would like to note that your own sites are just one of the many options for generating passive or active income on the Internet. My blog is just about financial opportunities on the net.

Have you ever worked in the field of traffic arbitrage, copywriting and other activities that bring in the main or additional income with remote cooperation? You can find out about this and much more right now on the pages of my blog.

Ahead I will publish still not a little realistic useful information. Stay in touch. If you wish, you can subscribe to Workip updates by e-mail. The subscription form is located below.

Many text elements should be center aligned on the web page. Mostly headlines. Let's see how it's done in css alignment center text.

text-align property

Responsible for this text-align property and it has four meanings:

• Left - text alignment to the left edge of the element in which it is located
• Right - right-aligned, but the direction of the text remains the same
• Center - in the center. That is what we need. None additional options no need to set - the browser itself will put the text exactly in the center on different screen resolutions
• Justify - justify, when words in each line are stretched so as to take up its entire width

For example, we have arbitrary text with a title:

header

To align our heading (h1) to the center, we need to write this:

H1(
Text-align: center
}

The property aligns not only regular text, but also all inline elements. For example, an image is an inline element by default, so it will also be affected by this rule.

Text-align does not act like a float property. If text-align is applied to a block element with text, then the block will not lose its behavior. The text in it will be pressed, not the block itself. Note that this is different from the float property, which sends the entire element right or left.

We continue to study HTML. In this tutorial, we'll look at HTML page headers, what headers are, how to use them correctly, and when they can be used. We will also analyze the paragraphs so that you can already fill your page with text, but, most importantly, do it right.

If you haven't read the first article, you can find it here:

• Lesson 1. What is HTML?

Theory and Practice - Paragraphs and headings of an HTML page

Today we will talk about paragraphs and headings. Let's start simple - with paragraphs and where they apply.

Paragraphs per page

I will now give an example of code in which the paragraph tag will be present.

You already remember the basic structure from the first lesson. There we dismantled the basics and looked at what HTML is. Therefore, we will focus on what is between the tags. .

When you write any text on a page, whether it's just a paragraph or a small explanatory line under the image, you need to put this text inside the tag.

In subsequent lessons, you will see the process of formatting these paragraphs. Now you should understand that you can't put a tag on a page without any tag. Because in the future it will be difficult to apply some individual styles for this particular section of the text.

Try writing a few paragraphs. Put some paragraphs in the tag, and leave some without it. And you will immediately see the difference. Because if you write a paragraph inside this tag, then it will immediately have indents. Now let's move on to the HTML headings of the page.

HTML headings per page

AT HTML Document there is semantics. I'm not talking about HTML5 technology and its new tags. Here we will only analyze the most basic ones so that you can quickly master the basics of HTML. Semantics means that headings, paragraphs, tables, and so on, should not be created using the same tag. It can be done, but HTML technology more diverse and appropriate tags are provided for different situations. And you just need to master the basic tags to work freely with HTML code.

I wrote this little introduction to the fact that for paragraphs you need to use the tag already known to you. But for headings, tags are used that begin with English letter"H".

Here is the entire list of headers you can use:

Some of these tags are used much more frequently. These are tags such as h1, h2 or h3. If someone is already familiar with CSS, then understands that the HTML heading The heading of the h3 page can be styled in such a way that it looks like h1 or h2 as well. But the meanings they carry, at least for SEO optimization, are radically different. As a rule, these numbers, inside the tags, should be understood as the level of importance of this or that HTML heading. Therefore, it is necessary to carefully study these elements and then search engines your articles will be noticed.

Until we get to the CSS, you'll see heading styles that are set by default in browsers. If you insert these tags one by one and write some text inside, you will see the following:

For search robots, the use of headings on the page is also important. There are certain rules that you can read in our book − PDF book on site promotion.

After we have studied everything, we immediately go into the code and try to write everything with our own hands. This is the fastest way to master any programming language. But HTML technology is much lighter than any programming language, so anyone can figure it out. This way you will remember the tags better.

Video tutorial - HTML page title? (practice)

Visual video on the example of working with these tags:

Homework

D/W: as an example, write a short text that will consist of 5-7 paragraphs and 2-3 different headings.

Practice more in paragraphs and HTML page titles!

www.sitehere.ru

How to make a table in HTML

Every table contains rows and columns. They, in turn, can contain text and an image.

To add a table to the page, use the tag

. This is the main and main container in which the elements of the table (rows and columns) are placed. And this container needs to be closed -.

Rows and columns are defined using tags and , while instead of you can safely use . difference from in that the browser displays the text in the cell as bold and also aligns it to the center of the cell - i.e. can be used in table headers without additional formatting. Otherwise, there is no difference between them, you can use any.

Table rows ( ) must be placed strictly between

. And the table columns ( ) in turn are placed strictly between the tags .

Let's create a practical table that will consist of one row and four columns. We need to mark the beginning of the table (

), start of string ( ), four cells ( ), end of table (

), end of line (

).

Result:

Now let's use the tag not to come back to it again.

Result:

I set the table width to 400 and as you can see the first and third cells are bold and center aligned. The rest are on the left side. I recommend that you always spend enough time formatting your code so you don't get confused. In a small table, this may not play a big role, but in a large one ...

Let's talk a little more about width since I mentioned it. The width of the table is set by the width attribute, the height - height. You can change in this way not only the width and height of the table, but also the size of the cells (they must all fit into the table, otherwise the browser will not understand what you want from it).

These values ​​(width and height) are specified in pixels, percent. You can leave it like that, do not write anything, the browser will think that you were too lazy to write “px” and consider the number as pixels.

Well, if you want to align the contents of one or more table cells, use the align attribute with the values ​​left, center, right. This is a horizontal alignment, but there is also a vertical one and it has its own separate attribute - valign, which can take values: baseline ( vertical alignment exactly along the baseline), bottom (along the bottom), middle (cell values ​​will be aligned vertically in the middle), top (along the top). By default, browsers align cells to the center (middle).

Increase the frame (borders) of the table and change its color

You may have noticed, I have already shown you how to work with the frame and width of the table. In general, by default, the table is always displayed in the browser without a frame, and this is not always convenient. That's why:

Agree, somehow not very much. But this is not a problem for those who are already familiar with the HTML border attribute, which I used in the examples at the beginning of the post.

Adding just 1 attribute and it gets better:

It's like Excel! Imagine that there would be no division of cells by lines (grid)? Well, horror. But what happens if you set the border to 10.

As you can see, border only affects the outer border and frame of the table, changing the width of the outer frame, while leaving the borders between table cells the same.

Let's change the color of this border, because there is also an attribute for this - bordercolor. Set its value to "d3d3d3". Result:

How to indent a table

Indents in the table are also needed to increase "readability", as well as cell borders. To create padding, we need the "cellspacing" attribute. I will continue to work with our 4x4 table, applying this attribute to it. I'll update the code for you (I include only one line so as not to clutter up the post):

Result:

These were the indents on the outside of the cells. But there is a similar attribute for setting padding inside cells - cellpadding, now I will also make it equal to 10 and you will see how the distance from the contents of the cell to its borders has increased (I had to make the number of cells smaller so that the table does not grow excessively). The code:

Result:

Now we will remove "cellspacing" and leave only "cellpadding". Result:

So we figured out how to create indents in the table and manage them. Excellent! If you are interested in how to do a line break, then this is written here.

How to correctly merge cells in a table

There are also special attributes for merging cells in your table. These are "colspan" and "rowspan". The first (colspan) combines cells by columns (horizontally), the second (rowspan) - by rows or vertically. Let's join something in our table.

Here carefully! When merging cells, you need to reduce their number by the number (minus one) that you specify in the attribute parameters. If you create a table in HTML, merge cells without deleting unnecessary ones, then the site will go. We unite two - we delete one. We unite three - we delete two. And so on.

When merging cells in columns or columns, one cell must be deleted! And do this as many times as the number of cells you merge. Now I'll show you an example.

When merging cells in columns or columns, one cell must be deleted! And do this as many times as the number of cells you merge.

Now I'll show you an example. Here is our current table:

Let's merge cells with numbers "1 and 2", "5 and 9", "4, 8, 12", "6 and 7". Look how cool it turned out, I myself did not expect!

The principle of association is this.

When horizontally merging cells number 1 and 2, you need to write “colspan =” 2 ″ in the first one, place the contents of the second in the first (we are merging) and delete the second cell (or hide it from HTML as I did - I will show it later.)

When vertically merging cells number 4, 8, 12, you need to write “rowspan =” 2 ″ ”in the first cell (number 4), and delete the contents of the rest, after placing them in the merged cell.

Here is the code I came up with. I have hidden the cells for clarity (to make it easier for you to understand), but you can also delete them.

I hope I explained clearly and gave a good example.

How to make a header for a table

To give a table a title - use tags after the start of the table (

), but before the start of the tag . Here's what happens:

Well, a little HTML hack for those who need to place the table header under the table itself. Use the align attribute with a value of bottom like this:

And then the table header will move under the table.

So, we've covered almost everything except for... the background!

How to make a beautiful background for a cell or an entire table

HTML allows you to set the color not only for the entire background of the table, but also for each individual cell (if there is such a need). Sets the background color of a table or cell to the "bgcolor" attribute.

Let me first set the background for the entire table. This will be the color ""lightgreen"" (in general, you can set it like this - "" # 90EE90 ""). This is how my table starts now:

Result:

Wow, the background color of the cells has become very ""lightgreen"". Now I'll color one of the table cells back white, giving it the same attribute, only with a different color:

Tada! Result:

I think it's cool! If I entered a creative spreadsheet competition (or HTML teaching preschoolers) I would definitely win.

I also wanted to write how to insert an image as a table background in HTML, but I already mentioned this in my other article at the link above.

Good luck and success in learning HTML.

blogwork.ru

Layout and alignment to the center of the pages of the site is a creative matter and often causes difficulties for beginners. So let's see how to do it. Suppose we want to make a page with the following structure:

Our page consists of four blocks: header (header), menu (menu), content (content) and the bottom of the site (footer). To align to the center of the page, we will place these four blocks in one main block (main): On the example of this structure, we will consider several options.

Layout and centering of the rubber site

When laying out a rubber site, the main unit of measurement used is %, because the site must stretch in width and occupy all the free space.

Therefore, the width of the "header" and "footer" blocks will be 100% of the screen width. The width of the "menu" block should be 30%, and the "content" block should be located next to the "menu" block, i.e. it must have a left margin (margin-left) with a width equal to the width of the "menu" block, i.e. thirty%.

In order for the "menu" and "content" blocks to be located side by side, let's make the "menu" block floating and press it to the left edge. We will also set the background colors for our blocks. Now let's write all this into a style sheet (in the style.css page)

The height of the blocks was set conditionally so that the result was visible. Look at our page in a browser:

If you resize the browser window, the width of all blocks will change. This is not always convenient, because. when stretching the menu block, an empty space appears. Therefore, more often the width of the "menu" block is made fixed, let's do it. To do this, let's replace the values ​​of the corresponding properties in the style sheet: Now our page stretches more naturally. With fluid layout, pages take up the entire width of the screen, so page centering is not required.

But if you want, you can make sure that your page has equal indents on the left and right of the screen. To do this, we need to add a style to the "main" block, which is the container for all other blocks: Now our page looks like this:

Site layout and centering, fixed width

In this case, we will have to set fixed sizes for our blocks: Our page is now pinned to the left edge of the screen.

In this case, alignment to the center of the site pages can be done as follows. Recall that our page has a "body" tag, which can also be given a width and some padding.

Let's do this: set the width of the "body" tag to 800 pixels (like the "main" block) and the left indent (padding-left) to 50%. Then the entire contents of the “main” block will be displayed on the right side of the screen (i.e. from the middle to the right):

In order for our “main” block to be located in the middle of the screen, its middle must match the middle of the “body” tag. Those. we need to shift the “main” block to the left by half its size. The width of the “main” block is 800 pixels, so you need to set the property “margin-left: -400px” to it. Yes, this property can take negative values, in which case the left margin is reduced (ie shifted to the left). And that is exactly what we need.

Now the style sheet looks like this: And our page in the browser is located exactly in the middle:

We considered two options for centering the pages of the site, in fact, they are not a dogma. You can experiment and come up with your own version, just check its work in different browsers. Unfortunately, what is displayed well in FireFox or Opera may be completely incomprehensible in IE and vice versa. And this must be remembered.

Good luck in your creative pursuits!

www.site-do.ru

How to center align text in html?

In HTML, there are two options that do not require the use of CSS.

1. 1.Tag
   A very easy-to-use tag that centers all inline elements that are in it, namely:
   • text,
   • Pictures,
   • links,
   • as well as tags , , , and some others.
     2. Using the HTML align attribute with the value center.
     We need to add this attribute inside the block tag, which contains the text that we need to center.
     It could be a tag

     ,

     ,

     …

     and some others.

     The align attribute also has other values:

     • align='"left'- text alignment to the left
     • align='right'- right alignment
     • align='justify'- justify text

     How to center text with CSS?

     Personally, I think that using HTML tags and attributes to center text is not the best solution. If you only need to align text in one or two places and don't feel like messing around with CSS, you can get away with the power of HTML, but to center align in multiple places on the page, it's better to use CSS.

     For this we have a special property text-align, which also has several meanings:

     • text-align: center;- for center alignment
     • text-align: left;- on the left side
     • text-align: right;- on the right side
     • text-align: justify;- by the width of the block or page.

     In order to apply it to our text, you can use one of the proposed options:

     1. 1. Assign the block tag (heading, form, paragraph or other block element) CSS class:

        And then in the CSS file of your site we write:

        Instead of block-text can be any other class name.

        If you need to center text alignment for all paragraphs or headings on the site at once, then it is not necessary to write this CSS property for everyone. It is enough to set or define the class or identifier of the block inside which these paragraphs or headings are located, and then add the following entry in the CSS file:

        In this case, the text alignment to the center will be applied to all tags

        Which are inside the tag with the block class:

        To align headings inside a block with the block class, the notation will be slightly different:

     2. 2. You can add the necessary CSS properties in the tag itself using the style attribute:

        This method, as well as the attribute align or tag center, is useful only in cases where alignment needs to be done in one or more places. For bulk text alignment, I do not recommend using it.

     That's all for me! Thank you for visiting my site! I will be very glad to see your comments! Good luck and prosperity!

     Sincerely, Yulia Gusar

     impuls-web.ru

     Attributes in HTML

     What is an attribute? An attribute is a parameter that gives tags certain information. There can be a lot of these parameters. For example, with the help of attributes, we can justify the text of a paragraph, set the font style and size, set the necessary indents, etc. Attributes are written inside the tags, followed by an equal sign, then the attribute values ​​are specified in double quotes. Attributes are separated from each other by a semicolon.

     Attribute Examples

     Consider working with attributes on examples. The simplest example - take the paragraph tag

     With the "align" attribute. Let's write:

     Left align paragraph example

     The "align" attribute tells the browser to align the paragraph to the left of the screen.

     Attributes can also be applied to the paragraph tag:

     • align="center" - alignment to the center of the screen;
     • align="right" - right alignment;
     • align="justify" - align the text to the width of the screen.

     Now let's complicate the task - we will create an HTML page using several different attributes. An example of such a page would have the following code:

     Attributes in HTML

     The "bgcolor" color attribute allows us to set the background color of the page. The "center" and "justify" attributes align the text within themselves, respectively, in the center and in the width.

     Headings in HTML

     with index. There are only six such indices - from 1 to 6, they indicate the size of the header (

     is the biggest title,

     - the smallest). For example, let's create a web page that has several headers. The code for this page will look like:

     Attributes in HTML

     What is an attribute? An attribute is a parameter that gives tags certain information. These parameters can be unlimited.

     Headings in HTML

     In order to create a title on the page, a special tag is used. with index. There are only six such indices - from 1 to 6, they indicate the size of the header...

     In this example, we have two headings - the first level heading here has no attributes, the second level heading has a center alignment attribute. After headings come paragraphs that also have their own attributes.

     This is how they work with attributes and headings in HTML. There is nothing complicated here. Be sure to practice on your own examples in order to consolidate the information received in this lesson.

     siteblogger.ru

     Greetings to all. Have you noticed that when designing, the blog title, post title, and gadget titles are not centered.

     Perhaps someone is satisfied with this option. But if you want to align them, then this post is for you. Usually we create our own unique blog header using Photoshop or another editor. Here, of course, the name is located exactly where we want it to be. But not everyone initially knows how to do this and is content with only the settings that are offered to us. As a result, the title of the blog is shifted to the left.

     Let's see how we can fix this with CSS in the blog template. Let's place all the headings strictly in the center and add some uniqueness to them.

     As usual, go to the template tab and be sure to make a backup copy. If something goes wrong, you can download the template back from your computer. And it would be better if, for now, you will do all the experiments on blog tests. Create another blog for this based on the same template.

     How to center align blog title.
     
     Template tab - Edit HTML. At the very top of the template, click on the black marker (arrow) on the left.

     And here all the CSS codes were opened before us. We go down slowly and find the line .Header h1 (
     
     

     Immediately after the brackets, write the value

     text-align:center;

     Thus, the name of the blog is located strictly in the center. Click view template to see the result. Everything worked out. Click save.

     But to spice things up a bit, let's take a look at a few more CSS styles that can be added to these brackets. Whether you need it or not is up to you. There are a lot of options here. Change color values.

     background:#e9967a; - background color.
     or background:url (http://www.fonstola.ru/large/201310/134392.jpg); picture instead of background.
     height:50px; — width value of the title block.
     text-shadow: 4px 3px 0px #B2AFBA, 9px 8px 0px rgba(0,0,0,0.10); - set the shadow for the text
     border-radius: 15px; - rounded corners.
     -moz-box-shadow:0 0 30px #a28b53 inset;
     box-shadow:0 0 30px #a28b53 inset;
     -webkit-box-shadow:0 0 30px #a28b53 inset;

     Highlighted in blue is the inner shadow of the title field. Just be careful. If you change color, then only this #e9967a(hash and six-digit number). Colon, brackets, dash, semicolon - everything is very important in the code.

     How to center align the gadget title in the sidebar.

     We also go down below and find this line
     
     .sidebar .widget h2 (
     
     

     In brackets we write text-align: center; However, in this case, it is necessary to set the width, font size, indents. Here I used an image instead of a background and set a shadow for the text and block.

     background:url(http://www.fonstola.ru/large/201310/134392.jpg); background or image
     height:20px;
     width: 200px
     border-radius: 13px;
     margin-left: 0px;
     padding-top:0px; /distance from frame edge/
     font-size: 16px; /font size/
     text-align: center; /text position/
     text-shadow: 4px 3px 0px #d2bf94;, 6px 5px 5px rgba(0,0,0,0.10); /shadow for text/
     box-shadow: 0 4px 6px rgba(0, 0, 0, .2); /block shadow/
     

     www.spargalochki.ru

     Vertical and Horizontal Centering in CSS Level 3

     We can extend both methods to center horizontally and vertically at the same time.

     A side effect of absolute paragraph positioning is that the paragraph becomes exactly as wide as it should be (unless we explicitly specify a width). In the example below, that's exactly what we want: we're centering a one-word paragraph (“Center!”), so the paragraph's width should be equal to that word's width.

     The yellow background clearly demonstrates that the paragraph is indeed the same width as its content. We assume that the markup remains the same:

     Center!

     In terms of vertical centering, this style sheet is similar to the one in the previous example. But now we also move the element halfway through the container with the 'left: 50%' rule and at the same time shift it to the left by half its own width in the 'translate' transform:

     div.container4 ( height: 10em; position: relative ) div.container4 p ( margin: 0; background: yellow; position: absolute; top: 50%; left: 50% margin-right: -50% transform: translate( -50%, -50%) }

     The following example explains why the 'margin-right: -50%' rule is required.

     When the CSS formatter supports 'flex', things get even easier:

     with this stylesheet:

     Div.container6( height: 10em; display: flex; align-items: center; justify-content: center) div.container6 p ( margin: 0 )

     those. the only addition is 'justify-content: center'. Just as 'align-items' defines the vertical alignment of the contents of a container, 'justify-content' defines the horizontal alignment in the same way. (Actually, it's a little more complicated, as their names suggest, but in a simple case, this is how it works.). A side effect of applying the 'flex' property is that the child element, P in our case, automatically becomes as small as possible.

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