本文将利用border属性实现简单几何的绘制；
效果图：
正八角星
说明:采用两个正方形以中心进行旋转叠加；
/* 八角星 */
#burst-8 {
background: #6376ff1f;
width: 80px;
height: 80px;
position: relative;
text-align: center;
transform: rotate(20deg);
} #burst-8:before {
content: "";
position: absolute;
top: 0;
left: 0;
height: 80px;
width: 80px;
background: #6376ff1f;
transform: rotate(135deg);
}
正六边形
说明：将长方形，与两个三角形拼接；
/* 正六边形 */
#hexagon {
width: 100px;
height: 55px;
background: #6376ff1f;
position: relative;
top: 25px;
} #hexagon:before {
content: "";
position: absolute;
top: -25px;
left: 0;
width: 0;
height: 0;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
border-bottom: 25px solid #6376ff1f;
} #hexagon:after {
content: "";
position: absolute;
bottom: -25px;
left: 0;
width: 0;
height: 0;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
border-top: 25px solid #6376ff1f;
}
平行四边形
说明:采用矩形skew倾斜的方式；
#ping {
height: 50px;
width: 100px;
transform: skew(20deg);
background: #6376ff1f;
}
椭圆
说明:采用矩形border-radius的方式；
#tuoyuan {
height: 50px;
width: 100px;
border-radius: 50%;
background: #6376ff1f;
}
心形
说明：将正方形旋转45度，与两个直径和其半径相同的半圆进行旋转、平移、拼接；
/* 心形 */
#heart {
height: 50px;
width: 50px;
background: #6376ff1f;
transform: rotate(45deg);
} #heart:before {
position: absolute;
content: "";
left: -25px;
top: 0px;
width: 50px;
height: 25px;
transform: rotate(-90deg);
background: #6376ff1f;
transform-origin: bottom;
border-radius: 50px 50px 0 0;
} #heart:after {
position: absolute;
content: "";
left: 0px;
top: -25px;
width: 50px;
height: 25px;
background: #6376ff1f;
border-radius: 50px 50px 0 0;
}
六角星
说明:采用两个等腰三角形进行叠加；
/* 六角星 */
#star-six {
width: 0;
height: 0;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
border-bottom: 100px solid #6376ff1f;
position: relative;
}
#star-six:after {
width: 0;
height: 0;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
border-top: 100px solid #6376ff1f;
position: absolute;
content: "";
top: 30px;
left: -50px;
}