只使用一个html元素绘制图形，部分图形需要浏览器支持

正方形 Square

长方形 Rectangle

圆形 Circle

椭圆形 Oval

三角形向上 Triangle Up

三角形向下 Triangle Down

三角形向左 Triangle Left

三角形向右 Triangle Right

三角形左上角 Triangle Top Left

三角形右上角 Triangle Top Right

三角形左下角 Triangle Bottom Left

三角形右下角 Triangle Bottom Right

曲箭头 Curved Tail Arrow

梯形 Trapezoid

平行四边形 Parallelogram

星形(6点) Star (6-points)

#star-five:before {
            content: '';
            display: block;
            position: absolute;
            top: -22.5px;
            left: -32.5px;
            height: 0;
            width: 0;
            border-bottom: 40px solid dodgerblue;
            border-left: 15px solid transparent;
            border-right: 15px solid transparent;
            transform: rotate(-35deg);
        }

#star-five:after {
            content: '';
            display: block;
            position: absolute;
            top: 1.5px;
            left: -52.5px;
            width: 0px;
            height: 0px;
            border-right: 50px solid transparent;
            border-bottom: 35px solid dodgerblue;
            border-left: 50px solid transparent;
            color: dodgerblue;
            transform: rotate(-70deg);
        }

五角形 Pentagon

六角形 Hexagon

八角形 Octagon

心形 Heart

无限形 Infinity

菱形 Diamond

菱形(窄) Diamond Narrow

菱形(盾) Diamond Shield

钻石 Diamond

蛋形 Egg

食豆小子 Pac-Man

谈话泡 Talk Bubble

爆炸(12点) Burst(12-points)

爆炸(8点) Burst(8-points)

太极 Tai Chi

#yin-yang {
            position: relative;
            width: 96px;
            height: 48px;
            background: white;
            border-width: 2px 2px 50px 2px;
            border-style: solid;
            border-color: dodgerblue;
            border-radius: 100%;
                        box-sizing: content-box;
        }

#yin-yang:before {
            content: "";
            position: absolute;
            top: 50%;
            left: 0;
            width: 12px;
            height: 12px;
            border: 18px solid dodgerblue;
            border-radius: 100%;
            background: white;
                        box-sizing: content-box;
        }

#yin-yang:after {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            width: 12px;
            height: 12px;
            border: 18px solid white;
            border-radius: 100%;
            background: dodgerblue;
                        box-sizing: content-box;
        }

徽章 Badge Ribbon

太空侵略者 Space Invader

#space-invader {
            width: 1em;
            height: 1em;
            margin: 70px 20px 90px 85px;
            overflow: hidden;
            background: dodgerblue;
            box-shadow: 0 0 0 1em dodgerblue,
            0 1em 0 1em dodgerblue,
            -2.5em 1.5em 0 .5em dodgerblue,
            2.5em 1.5em 0 .5em dodgerblue,
            -3em -3em 0 0 dodgerblue,
            3em -3em 0 0 dodgerblue,
            -2em -2em 0 0 dodgerblue,
            2em -2em 0 0 dodgerblue,
            -3em -1em 0 0 dodgerblue,
            -2em -1em 0 0 dodgerblue,
            2em -1em 0 0 dodgerblue,
            3em -1em 0 0 dodgerblue,
            -4em 0 0 0 dodgerblue,
            -3em 0 0 0 dodgerblue,
            3em 0 0 0 dodgerblue,
            4em 0 0 0 dodgerblue,
            -5em 1em 0 0 dodgerblue,
            -4em 1em 0 0 dodgerblue,
            4em 1em 0 0 dodgerblue,
            5em 1em 0 0 dodgerblue,
            -5em 2em 0 0 dodgerblue,
            5em 2em 0 0 dodgerblue,
            -5em 3em 0 0 dodgerblue,
            -3em 3em 0 0 dodgerblue,
            3em 3em 0 0 dodgerblue,
            5em 3em 0 0 dodgerblue,
            -2em 4em 0 0 dodgerblue,
            -1em 4em 0 0 dodgerblue,
            1em 4em 0 0 dodgerblue,
            2em 4em 0 0 dodgerblue;
        }

TV形 TV Screen

臂章 Chevron

放大镜 Magnifying Glass

月亮 Moon

旗帜 Flag

锥体 Cone

十字架 Cross

基地 Base

指针 Pointer

原文链接：http://www.bestvist.com/p/58
原文有效果更直观呦
GitHub地址欢迎star ^ _ ^

花样形状 -- CSS