- div區(qū)中的技巧
.parent {
width:800px;
height:500px;
border:2px solid #000;
position:relative;
}
.child {
width:300px;
height:200px;
margin:auto;
position:absolute;
/*設(shè)定水平和垂直偏移父元素的50%季眷,再根據(jù)實際長度將子元素上左挪回一半大小*/
left:50%;
top:50%;
margin-left: -150px;
margin-top:-100px;
background-color: antiquewhite; }
.parent {
width:800px;
height:500px;
border:2px solid #000;
display:flex;
justify-content:center;
align-items:center;
}
.child {
width:200px;
height:200px;
background-color: antiquewhite;
}
.parent {
width:800px;
height:500px;
border:2px solid #000;
position:relative;
}
.child {
width:200px;
height:200px;
margin: auto;
position: absolute;
top: 0; left: 0; bottom: 0; right: 0;
background-color: antiquewhite;
}
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