How to display images in the center in html5

Picture centering method: 1. Use "margin:0 auto" to achieve horizontal centering; 2. Use "text-align:center" to achieve horizontal centering; 3. Use line-height to achieve vertical centering; 4. Use The table achieves vertical centering; 5. Use position to achieve vertical centering.

The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.

1. First, let’s take a look at the method of horizontally centering CSS images

1. Use margin:0 auto to achieve horizontal centering of images

html image horizontal centering code:

<div style="text-align:center;width:500px;border:greensolid1px;">
<img alt="" src="http://img0.imgtn.bdimg.com/it/u=1768770686,623173162&fm=26&gp=0.jpg"  style="margin:0 auto;"/>
</div>

2. Use the horizontal centering attribute of the text text-align:center to achieve horizontal centering of the image

html image horizontal centering code:

<div>
<div style="text-align:center;width:500px;border:greensolid1px;">
<img alt="" src="http://img0.imgtn.bdimg.com/it/u=1768770686,623173162&fm=26&gp=0.jpg"  style="display:inline-block;"/>
</div>

2. Let’s take a look at how to implement vertical centering of css images

1. Use line-height To achieve vertical centering of images

htmlThe code for vertical centering of images is as follows:

<div style="text-align:center;width:500px;height:200px;line-height:200px;border:greensolid1px;">
<img alt="" src="http://img0.imgtn.bdimg.com/it/u=1768770686,623173162&fm=26&gp=0.jpg" style="display:inline-block;vertical-align:middle;"/>
</div>

Note:This method requires the height to be specified before it can be used.

2. Use table to achieve vertical centering of the image.

html The code for vertical centering of the image is as follows:

<div style="text-align:center;width:500px;height:200px;display:table;border:greensolid1px;">
<span style="display:table-cell;vertical-align:middle;">
<img alt="" src="http://img0.imgtn.bdimg.com/it/u=1768770686,623173162&fm=26&gp=0.jpg" style="display:inline-block;"/>
</span>
</div>

Note : This method makes use of the vertical centering attribute of the table

Description: Use display:table; and display:table-cell here ; to simulate table, this method is not compatible with IE6/IE7, IE67 does not support display:table, if you do not need to support IE67, you can use

This method has a disadvantage: when you set display:table; it may change your original layout

3. Use positionAchieve vertical centering of images

The code for vertical centering of html images is as follows:

<div style="width:500px;height:200px;position:relative;border:greensolid1px;">
<img alt="" src="http://img0.imgtn.bdimg.com/it/u=1768770686,623173162&fm=26&gp=0.jpg" style="width:120px;height:40px;position:absolute;left:50%;top:50%;margin-left:-60px;margin-top:-20px;"/>
</div>

Instructions: If the width and height of the image are known, this method can be used.

Recommended learning: html5 video tutorial

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