前言
我们在日常的开发中，会遇到各种盒子居中的问题，而解决这些问题，是一个前端工程师必须会的东西。所以，我在这里总结了6总盒子居中的方式。用了flex布局，position方式，calc方式，table-cell的方式。
盒子居中的方式1
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>盒子居中的方式1</title>
<style>
*{
margin: 0;
padding: 0;
}
.box{
display: flex;
align-items: center;
justify-content: center;
width: 100vw;
height: 100vh;
background-color: green;
}
.box1{
width: 100px;
height: 100px;
background-color: red;
}
</style>
</head>
<body>
<div class="box">
<div class="box1"></div>
</div>
</body>
</html>
盒子居中的方式2
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>盒子居中的方式2</title>
<style>
*{
margin: 0;
padding: 0;
}
.box{
position: relative;
width: 100vw;
height: 100vh;
background-color: green;
}
.box1{
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%,-50%);
width: 100px;
height: 100px;
background-color: red;
}
</style>
</head>
<body>
<div class="box">
<div class="box1"></div>
</div>
</body>
</html>
盒子的居中方式3
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>盒子居中的方式3</title>
<style>
*{
margin: 0;
padding: 0;
}
.box{
position: relative;
width: 100vw;
height: 100vh;
background-color: green;
}
.box1{
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
margin: auto;
width: 100px;
height: 100px;
background-color: red;
}
</style>
</head>
<body>
<div class="box">
<div class="box1"></div>
</div>
</body>
</html>
盒子居中方式4
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>盒子居中的方式4</title>
<style>
*{
margin: 0;
padding: 0;
}
.box{
display: table-cell;
vertical-align: middle;
width: 100vw;
height: 100vh;
background-color: green;
}
.box1{
margin: 0 auto;
width: 100px;
height: 100px;
background-color: red;
}
</style>
</head>
<body>
<div class="box">
<div class="box1"></div>
</div>
</body>
</html>
盒子居中方式5
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>盒子居中的方式5</title>
<style>
*{
margin: 0;
padding: 0;
}
.box{
display: grid;
align-items: center;
justify-items: center;
width: 100vw;
height: 100vh;
background-color: green;
}
.box1{
width: 100px;
height: 100px;
background-color: red;
}
</style>
</head>
<body>
<div class="box">
<div class="box1"></div>
</div>
</body>
</html>
盒子居中方式6
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>盒子居中的方式6</title>
<style>
* {
margin: 0;
padding: 0;
}
.box {
width: 100vw;
height: 100vh;
background-color: green;
padding: calc((100vh - 100px)/2) 0;
box-sizing: border-box;
}
.box1 {
width: 100px;
height: 100px;
margin: 0 auto;
background-color: red;
}
</style>
</head>
<body>
<div class="box">
<div class="box1"></div>
</div>
</body>
</html>
如果有什么不对的地方请大家指正。
