网页中,有时候会碰到饼状图的需求，比如统计图表，进度指示器，定时器等，实现方式也是各种各样，现在也有不少现成的js库，可以直接拿来使用，方便很多。这里笔者为大家演示一种纯css实现饼状图效果的方法。
<div class="pie"></div>
.pie {
width: 100px;
height: 100px;
border-radius: 50%;
background: yellowgreen;
background-image: linear-gradient(to right, transparent 50%, #655 0);
}
.pie::before {
content: '';
display: block;
margin-left: 50%;
height: 100%;
border-radius: 0 100% 100% 0/50%;
background-color: inherit;
transform-origin: left;
transform: rotate(.2turn);
}
.pie {
width: 100px;
height: 100px;
border-radius: 50%;
background: yellowgreen;
background-image: linear-gradient(to right, transparent 50%, #655 0);
}
.pie::before {
content: '';
display: block;
margin-left: 50%;
height: 100%;
border-radius: 0 100% 100% 0/50%;
background-color: inherit;
transform-origin: left;
animation: spin 3s linear infinite,bg 6s step-end infinite;
}
@keyframes spin{
to{transform: rotate(.5turn);}
}
@keyframes bg{
50%{background: #655;}
}
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