效果:
HTML代码:
XML/HTML Code复制内容到剪贴板
<div class="box shadow"></div>
CSS代码:
CSS Code复制内容到剪贴板
.box {
width: 300px;
height: 100px;
background: #ccc;
border-radius: 10px;
margin: 10px;
}
.shadow {
position: relative;
max-width: 270px;
box-shadow: 0px 1px 4px rgba(0,0,0,0.3),/* 外阴影*/
0px 0px 20px rgba(0,0,0,0.1) inset;/*内阴影*/
}
.shadow::before,
.shadow::after {
content:"";
position:absolute;
z-index:-1;
}
.shadow::before,
.shadow::after {
content:"";
position:absolute;
z-index:-1;
bottombottom:15px;
left:10px;
width:50%;
height:20%;
}
.shadow::before,
.shadow::after {
content:"";
position:absolute;
z-index:-1;
bottombottom:15px;
left:10px;
width:50%;
height:20%;
box-shadow:0 15px 10px rgba(0, 0, 0, 0.7);
transform:rotate(-3deg);
}
.shadow::after{
rightright:10px;
left:auto;
transform:rotate(3deg);
}
伪元素before和after意思是在被选元素的内容前或后 插入内容










