# 不规则投影
背景知识： filter (opens new window), radial-gradient (opens new window), border-image (opens new window)
<style>
.main-irregular-projection {
width: 100%;
padding: 60px 0 30px 0;
display: flex;
flex-wrap: wrap;
justify-content: space-around;
}
.main-irregular-projection .projection {
width: 228px; height: 180px;
margin-bottom: 29px;
background: #b4a078;
position: relative;
}
.main-irregular-projection .row1 > .projection:nth-of-type(1) {
border-radius: 5px;
filter: drop-shadow(2px 2px 2px rgba(180,160,120,.9));
}
.main-irregular-projection .row1 > .projection:nth-of-type(1)::before{
content: '';
position: absolute;
width: 0; height: 0;
top: 65px; right: -20px;
border: 22px solid transparent;
border-left-color: #b4a078;
border-right-width: 0;
}
.main-irregular-projection .row1 > .projection:nth-of-type(2) {
background: transparent;
border: 6px dotted #b4a078;
filter: drop-shadow(2px 2px 2px rgba(180,160,120,.9));
}
.main-irregular-projection .row2 > .projection:nth-of-type(1) {
background: radial-gradient(circle at bottom right, transparent 29px, #b4a078 30px) bottom right;
filter: drop-shadow(2px 2px 2px rgba(180,160,120,.9));
}
.main-irregular-projection .row2 > .projection:nth-of-type(2) {
border: 29px dotted #b4a078;
border-image: 1 url('data:image/svg+xml, <svg xmlns="http://www.w3.org/2000/svg" width="3" height="3" fill="%23b4a078"> <polygon points="0,0 0,0 3,0 3,0 3,2 2,3 0,3 0,3"/> </svg>');
filter: drop-shadow(2px 2px 2px rgba(180,160,120,.9));
background-clip: padding-box;
}
</style>
<template>
<div class="main-irregular-projection">
<div class="row1">
<div class="projection"></div>
<div class="projection"></div>
</div>
<div class="row2">
<div class="projection"></div>
<div class="projection"></div>
</div>
</div>
</template>
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