常见投影
?> 背景知识：
box-shadow
<script v-pre type="text/x-template" id="single-projection">
<style>
main {
width: 100%;
padding: 20px 0 0 0;
}
.projection {
display: flex;
flex-wrap: wrap;
justify-content: space-around;
align-items: center;
padding-bottom: 20px;
margin-bottom: 20px;
border-bottom: 1px solid #eee;
}
.projection > div {
width: 180px; height: 120px;
background: rgba(180,160,120,.2);
}
.projection:not(:first-child:last-child) > div {
border: 2px solid transparent;
background-clip: content-box;
}
.projection:last-child {
margin-bottom: 0;
border-bottom: 0;
}
.projection:nth-of-type(1) > div {
margin-left: -6px;
box-shadow: 0 0 6px rgba(180,160,120,.8);
}
.projection:nth-of-type(2) > div {
border-bottom: 0;
box-shadow: 0px 6px 5px -5px rgba(180,160,120,.6);
}
.projection:nth-of-type(3) > div {
border-right: 0;
border-bottom: 0;
box-shadow: 5px 5px 5px -4px rgba(180,160,120,.6);
}
.projection:nth-of-type(4) > div {
border-right: 0;
border-left: 0;
box-shadow: 6px 0 5px -5px rgba(180,160,120,.6), -6px 0 5px -5px rgba(180,160,120,.6);
}
.projection:nth-of-type(5) > div {
box-shadow: 0 0 0 1px rgba(180,160,120,.6);
}
</style>
<script>
</script>
</script>
浏览器支持
<iframe src="https://caniuse.bitsofco.de/embed/index.html?feat=css-boxshadow&periods=future_1,current,past_1,past_2,past_3&accessible-colours=false" frameborder="0" width="100%" height="436px"></iframe>
