1、上三角
#triangle-up { 0; height: 0; border-left: 50px solid transparent; border-right: 50px solid transparent; border-bottom: 100px solid red; }
2、平行四边形
#parallelogram { 150px; height: 100px; margin-left:20px; -webkit-transform: skew(20deg); -moz-transform: skew(20deg); -o-transform: skew(20deg); background: red; }
3、五角星
#star-five { margin: 50px 0; position: relative; display: block; color: red; 0px; height: 0px; border-right: 100px solid transparent; border-bottom: 70px solid red; border-left: 100px solid transparent; -moz-transform: rotate(35deg); -webkit-transform: rotate(35deg); -ms-transform: rotate(35deg); -o-transform: rotate(35deg); }
#star-five:before { border-bottom: 80px solid red; border-left: 30px solid transparent; border-right: 30px solid transparent; position: absolute; height: 0; 0; top: -45px; left: -65px; display: block; content: ''; -webkit-transform: rotate(-35deg); -moz-transform: rotate(-35deg); -ms-transform: rotate(-35deg); -o-transform: rotate(-35deg); }
#star-five:after { position: absolute; display: block; color: red; top: 3px; left: -105px; 0px; height: 0px; border-right: 100px solid transparent; border-bottom: 70px solid red; border-left: 100px solid transparent; -webkit-transform: rotate(-70deg); -moz-transform: rotate(-70deg); -ms-transform: rotate(-70deg); -o-transform: rotate(-70deg); content: ''; }
4、爱心
#heart { position: relative; 100px; height: 90px; } #heart:before, #heart:after { position: absolute; content: ""; left: 50px; top: 0; 50px; height: 80px; background: red; -moz-border-radius: 50px 50px 0 0; border-radius: 50px 50px 0 0; -webkit-transform: rotate(-45deg); -moz-transform: rotate(-45deg); -ms-transform: rotate(-45deg); -o-transform: rotate(-45deg); transform: rotate(-45deg); -webkit-transform-origin: 0 100%; -moz-transform-origin: 0 100%; -ms-transform-origin: 0 100%; -o-transform-origin: 0 100%; transform-origin: 0 100%; }
#heart:after { left: 0; -webkit-transform: rotate(45deg); -moz-transform: rotate(45deg); -ms-transform: rotate(45deg); -o-transform: rotate(45deg); transform: rotate(45deg); -webkit-transform-origin: 100% 100%; -moz-transform-origin: 100% 100%; -ms-transform-origin: 100% 100%; -o-transform-origin: 100% 100%; transform-origin :100% 100%; }
5、鸡蛋
#egg { display:block; 126px; height: 180px; background-color: red; -webkit-border-radius: 63px 63px 63px 63px / 108px 108px 72px 72px; border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%; }
![](https://images2015.cnblogs.com/blog/842920/201608/842920-20160802105134668-1264813838.png)
6、无穷大符
#infinity { position: relative; 212px; height: 100px; } #infinity:before, #infinity:after { content: ""; position: absolute; top: 0; left: 0; 60px; height: 60px; border: 20px solid red; -moz-border-radius: 50px 50px 0 50px; border-radius: 50px 50px 0 50px; -webkit-transform: rotate(-45deg); -moz-transform: rotate(-45deg); -ms-transform: rotate(-45deg); -o-transform: rotate(-45deg); transform: rotate(-45deg); }
#infinity:after { left: auto; right: 0; -moz-border-radius: 50px 50px 50px 0; border-radius: 50px 50px 50px 0; -webkit-transform: rotate(45deg); -moz-transform: rotate(45deg); -ms-transform: rotate(45deg); -o-transform: rotate(45deg); transform: rotate(45deg); }
![](https://images2015.cnblogs.com/blog/842920/201608/842920-20160802105228887-2142891678.png)
7、食人豆
#pacman { 0px; height: 0px; border-right: 60px solid transparent; border-top: 60px solid red; border-left: 60px solid red; border-bottom: 60px solid red; border-top-left-radius: 60px; border-top-right-radius: 60px; border-bottom-left-radius: 60px; border-bottom-right-radius: 60px; }
![](https://images2015.cnblogs.com/blog/842920/201608/842920-20160802105329747-1543261367.png)
8、钻石
#cut-diamond { border-style: solid; border-color: transparent transparent red transparent; border- 0 25px 25px 25px; height: 0; 50px; position: relative; margin: 20px 0 50px 0; } #cut-diamond:after { content: ""; position: absolute; top: 25px; left: -25px; 0; height: 0; border-style: solid; border-color: red transparent transparent transparent; border- 70px 50px 0 50px; }
![](https://images2015.cnblogs.com/blog/842920/201608/842920-20160802105546372-84866932.png)
9、八卦阵
#yin-yang { 96px; height: 48px; background: #eee; border-color: black; border-style: solid; border- 2px 2px 50px 2px; border-radius: 100%; position: relative; } #yin-yang:before { content: ""; position: absolute; top: 50%; left: 0; background: #eee; border: 18px solid black; border-radius: 100%; 12px; height: 12px; }
#yin-yang:after { content: ""; position: absolute; top: 50%; left: 50%; background: black; border: 18px solid #eee; border-radius:100%; 12px; height: 12px; }
![](https://images2015.cnblogs.com/blog/842920/201608/842920-20160802105843231-292029395.png)