置中篇 - 範例
這篇主要簡單帶過幾種置中的方式：
範例１、Display - Flex
<div class="main">
<div class="box"></div>
</div> *,*::after,*::before
{
box-sizing: border-box;
}
body{
margin: 0;
padding: 0;
}
.main{
position: relative;
height: 100vh;
background-color: #555;
display: flex;
justify-content: center;
align-items: center;
}
.box{
position: relative;
height: 200px;
width: 200px;
background-color: plum;
}範例２、Display - Grid
<div class="main">
<div class="box"></div>
</div> *,*::after,*::before
{
box-sizing: border-box;
}
body{
margin: 0;
padding: 0;
}
.main{
position: relative;
height: 100vh;
background-color: #555;
display: grid;
}
.box{
position: relative;
height: 200px;
width: 200px;
justify-self: center;
align-self: center;
background-color: plum;
}範例２－１
<div class="main">
<div class="box"></div>
</div> *,*::after,*::before
{
box-sizing: border-box;
}
body{
margin: 0;
padding: 0;
}
.main{
position: relative;
height: 100vh;
background-color: #555;
display: grid;
}
.box{
position: relative;
height: 200px;
width: 200px;
margin: auto;
background-color: plum;
}範例２－２
<div class="main">
<div class="box"></div>
</div> *,*::after,*::before
{
box-sizing: border-box;
}
body{
margin: 0;
padding: 0;
}
.main{
position: relative;
height: 100vh;
background-color: #555;
display: grid;
}
.box{
position: relative;
height: 200px;
width: 200px;
margin: auto;
background-color: plum;
}範例３position -relative
範例３－１
範例３－２
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