块级元素水平垂直居中一直是常考面试体,工作中也经常会用到,在这里就汇总使用css实现块级元素水平垂直居中的方法.欢迎补充.
方法一: 父级元素position:relative, 子元素position:absolute;top:0;left:0;bottom:0;right:0;margin:auto;
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>元素水平垂直居中</title>
<style>
* {
margin: 0;
padding: 0;
}
.wrap {
width: 500px;
height: 500px;
margin: 0 auto;
background-color: grey;
position: relative;
}
.box {
width: 200px;
height: 200px;
background-color: pink;
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
margin: auto;
}
</style>
</head>
<body>
<div class="wrap">
<div class="box"></div>
</div>
</body>
</html>方法二:父级元素position:relative, 子元素position:absolute;top:50%;left:50%;margin-left:-(子元素宽度的一半);margin-top:-(子元素高度的一半).
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>元素水平垂直居中</title>
<style>
* {
margin: 0;
padding: 0;
}
.wrap {
width: 500px;
height: 500px;
margin: 0 auto;
background-color: grey;
position: relative;
}
.box {
width: 200px;
height: 200px;
background-color: pink;
position: absolute;
top: 50%;
left: 50%;
margin-left: -100px;
margin-top: -100px;
}
</style>
</head>
<body>
<div class="wrap">
<div class="box"></div>
</div>
</body>
</html>方法三:使用transform:translate(-50%, -50%);
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>元素水平垂直居中</title>
<style>
* {
margin: 0;
padding: 0;
}
.wrap {
width: 500px;
height: 500px;
margin: 0 auto;
background-color: grey;
position: relative;
}
.box {
width: 200px;
height: 200px;
background-color: pink;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
</style>
</head>
<body>
<div class="wrap">
<div class="box"></div>
</div>
</body>
</html>方法四: 使用flex布局 align-items: center;
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>元素水平垂直居中</title>
<style>
* {
margin: 0;
padding: 0;
}
.wrap {
width: 500px;
height: 500px;
margin: 0 auto;
background-color: grey;
display: flex;
justify-content: center;
align-items: center;
}
.box {
width: 200px;
height: 200px;
background-color: pink;
}
</style>
</head>
<body>
<div class="wrap">
<div class="box"></div>
</div>
</body>
</html>方法五: 使用flex布局 flex-direction: column;align-self: center;
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>元素水平垂直居中</title>
<style>
* {
margin: 0;
padding: 0;
}
.wrap {
width: 500px;
height: 500px;
margin: 0 auto;
background-color: grey;
display: flex;
flex-direction: column;
justify-content: center;
}
.box {
align-self: center;
width: 200px;
height: 200px;
background-color: pink;
}
</style>
</head>
<body>
<div class="wrap">
<div class="box"></div>
</div>
</body>
</html>方法六: display:table
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>元素水平垂直居中</title>
<style>
* {
margin: 0;
padding: 0;
}
.wrap {
width: 500px;
/* height: 500px; */
padding: 100px;
margin: 0 auto;
background-color: grey;
display: table;
}
.box {
width: 200px;
height: 200px;
background-color: pink;
display: table-cell;
vertical-align: center;
}
</style>
</head>
<body>
<div class="wrap">
<div class="box"></div>
</div>
</body>
</html>欢迎补充!
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