How to center align images in html?
How to center align images in html? The following article will introduce it to you. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.
There are many ways to center the image. It is considered the basis of HTML. Here are a few methods to introduce to you.
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<style type="text/css">
div{
width: 200px;
height: 200px;
border: 3px solid skyblue;
}
</style>
</head>
<body>
<div>
<img src="/static/imghw/default1.png" data-src="1.jpg" class="lazy" style="max-width:90%" / alt="How to center align images in html?" >
</div>
</body>
</html>Rendering of the above code:
Method 1:
img{
position: relative;
left: 50%;
top: 50%;
margin: -60px 0 0 -75px;
}Give the img tag Set position positioning, position: relative, left: 50%; top: 50% respectively means to move the element to the right by half the width of the parent container and down by half the height of the parent container, because the distance moved is based on the parent container It is the standard half-height-width distance, and the effect is as follows:
Because this picture is larger, it exceeds the scope of the div. . .
After that, you need to move the img back to center the img element. Margin: -60px 0 0 -75px; refers to moving the img element 75px to the left and 60px up (because of the picture material used The width and height are 150*120), so that the image can be centered.
Method 2:
img{
position: relative;
left: 50%;
top: 50%;
transform: translate(-50%,-50%);
}In fact, this method is similar to the above method, but I personally feel that this comparison Practical, because the first method has a trouble, that is, the margin value must change with the size of the img element. It doesn't matter if the img elements are all the same size, but this requirement is a bit high.
This method uses 2D transformation, transform: translate (the value of x-axis movement, the value of y-axis movement). The advantage of this method is that there is no need to measure the width and height of the img element and directly set the percentage. , in transform: translate(), the percentage used is actually relative to the width and height of the element itself.
Method 3:
Set as a two-level parent container, set display: table on the first level, and convert the first-level parent container into a table type.
After that, set display: table-cell at the second level, which is the upper-level parent container of img,
Set text-align: center in the first-level parent container,
Setting vertical-align: middle at the second level can achieve the purpose of centering the image
Method 4:
Set the main and side axes Alignment
<div class="a"> <img src="/static/imghw/default1.png" data-src="img/MEIZU.png" class="lazy" alt="How to center align images in html?" > </div>
div.a{
width: 600px;
height: 200px;
border: 1px solid saddlebrown;
display: flex;
justify-content: space-around;
align-items: center;
}
div.a img{
border: 1px solid red;
}Set display: flex to the parent container and convert the parent container into a telescopic box, because this is required to apply the main and side axis alignment. . . .
Then set the main axis alignment to justify-content: space-around;
Note: Internet Explorer 10 and earlier browsers do not support the justify-content attribute.
Note: Safari 6.1 and newer supports this property through the -webkit-justify-content property.
Then set the cross-axis alignment of the parent container, align-items: center;
Note: Internet Explorer 10 and earlier browsers do not support the align-items attribute.
Note: Safari 7.0 and newer supports this property through the -webkit-align-items property.
What are you looking at? The picture is already centered.
If it were not for the fact that Internet Explorer 10 and earlier browsers do not support it, this method would actually be the most appropriate.
Recommended tutorial: html tutorial
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