今天在国外的网站上看到了很多看似简单却又非常强大的纯CSS绘制的图形，里面有最简单的矩形、圆形和三角形，也有各种常见的多边形，甚至是阴阳太极和网站小图标，真的非常强大，分享给大家。
Square(正方形)
#square { width: 100px; height: 100px; background: red;} Rectangle(矩形)
#rectangle { width: 200px; height: 100px; background: red;} Circle(圆形)
#circle { width: 100px; height: 100px; background: red; -moz-border-radius: 50px; -webkit-border-radius: 50px; border-radius: 50px;}/* 可以使用百分比值(大于50%)，但是低版本的Android不支持 */ Oval(椭圆形)
#oval { width: 200px; height: 100px; background: red; -moz-border-radius: 100px / 50px; -webkit-border-radius: 100px / 50px; border-radius: 100px / 50px;}/* 可以使用百分比值(大于50%)，但是低版本的Android不支持 */ Triangle Up(向上的三角形)
#triangle-up { width: 0; height: 0; border-left: 50px solid transparent; border-right: 50px solid transparent; border-bottom: 100px solid red;} Triangle Down(向下)
#triangle-down { width: 0; height: 0; border-left: 50px solid transparent; border-right: 50px solid transparent; border-top: 100px solid red;} Triangle Left(向左)
#triangle-left { width: 0; height: 0; border-top: 50px solid transparent; border-right: 100px solid red; border-bottom: 50px solid transparent;} Triangle Right(向右)
#triangle-right { width: 0; height: 0; border-top: 50px solid transparent; border-left: 100px solid red; border-bottom: 50px solid transparent;} Triangle Top Left(左上)
#triangle-topleft { width: 0; height: 0; border-top: 100px solid red; border-right: 100px solid transparent;} Triangle Top Right(右上)
#triangle-topright { width: 0; height: 0; border-top: 100px solid red; border-left: 100px solid transparent;} Triangle Bottom Left(左下)
#triangle-bottomleft { width: 0; height: 0; border-bottom: 100px solid red; border-right: 100px solid transparent;} Triangle Bottom Right(右下)
#triangle-bottomright { width: 0; height: 0; border-bottom: 100px solid red; border-left: 100px solid transparent;} Curved Tail Arrow(弯尾箭头)
#curvedarrow { position: relative; width: 0; height: 0; border-top: 9px solid transparent; border-right: 9px solid red; -webkit-transform: rotate(10deg); -moz-transform: rotate(10deg); -ms-transform: rotate(10deg); -o-transform: rotate(10deg);}#curvedarrow:after { content: ""; position: absolute; border: 0 solid transparent; border-top: 3px solid red; border-radius: 20px 0 0 0; top: -12px; left: -9px; width: 12px; height: 12px; -webkit-transform: rotate(45deg); -moz-transform: rotate(45deg); -ms-transform: rotate(45deg); -o-transform: rotate(45deg);} Trapezoid(梯形)
#trapezoid { border-bottom: 100px solid red; border-left: 50px solid transparent; border-right: 50px solid transparent; height: 0; width: 100px;} Parallelogram(平行四边形)
#parallelogram { width: 150px; height: 100px; -webkit-transform: skew(20deg); -moz-transform: skew(20deg); -o-transform: skew(20deg); background: red;} Star (6-points)(六角星)
#star-six { width: 0; height: 0; border-left: 50px solid transparent; border-right: 50px solid transparent; border-bottom: 100px solid red; position: relative;}#star-six:after { width: 0; height: 0; border-left: 50px solid transparent; border-right: 50px solid transparent; border-top: 100px solid red; position: absolute; content: ""; top: 30px; left: -50px;} Star (5-points)(五角星)
#star-five { margin: 50px 0; position: relative; display: block; color: red; width: 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; width: 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; width: 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: '';} Pentagon(五边形)
#pentagon { position: relative; width: 54px; border-width: 50px 18px 0; border-style: solid; border-color: red transparent;}#pentagon:before { content: ""; position: absolute; height: 0; width: 0; top: -85px; left: -18px; border-width: 0 45px 35px; border-style: solid; border-color: transparent transparent red;} Hexagon(六边形)
#hexagon { width: 100px; height: 55px; background: red; position: relative;}#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 red;}#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 red;} Octagon(八边形)
#octagon { width: 100px; height: 100px; background: red; position: relative;}#octagon:before { content: ""; position: absolute; top: 0; left: 0; border-bottom: 29px solid red; border-left: 29px solid #fff; border-right: 29px solid #fff; width: 42px; height: 0;}#octagon:after { content: ""; position: absolute; bottom: 0; left: 0; border-top: 29px solid red; border-left: 29px solid #fff; border-right: 29px solid #fff; width: 42px; height: 0;} Heart(心形)
#heart { position: relative; width: 100px; height: 90px;}#heart:before,#heart:after { position: absolute; content: ""; left: 50px; top: 0; width: 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%;} Infinity(无限符图形)
#infinity { position: relative; width: 212px; height: 100px;}#infinity:before,#infinity:after { content: ""; position: absolute; top: 0; left: 0; width: 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);} Diamond Square(菱形)
#diamond { width: 0; height: 0; border: 50px solid transparent; border-bottom-color: red; position: relative; top: -50px;}#diamond:after { content: ''; position: absolute; left: -50px; top: 50px; width: 0; height: 0; border: 50px solid transparent; border-top-color: red;} Diamond Shield（钻石盾牌）
#diamond-shield { width: 0; height: 0; border: 50px solid transparent; border-bottom: 20px solid red; position: relative; top: -50px;}#diamond-shield:after { content: ''; position: absolute; left: -50px; top: 20px; width: 0; height: 0; border: 50px solid transparent; border-top: 70px solid red;} Diamond Narrow
#diamond-narrow { width: 0; height: 0; border: 50px solid transparent; border-bottom: 70px solid red; position: relative; top: -50px;}#diamond-narrow:after { content: ''; position: absolute; left: -50px; top: 70px; width: 0; height: 0; border: 50px solid transparent; border-top: 70px solid red;} Cut Diamond(砖石形)
#cut-diamond { border-style: solid; border-color: transparent transparent red transparent; border-width: 0 25px 25px 25px; height: 0; width: 50px; position: relative; margin: 20px 0 50px 0;}#cut-diamond:after { content: ""; position: absolute; top: 25px; left: -25px; width: 0; height: 0; border-style: solid; border-color: red transparent transparent transparent; border-width: 70px 50px 0 50px;} Egg(鸡蛋)
#egg { display:block; width: 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%;} Pac-Man(吃豆人)
#pacman { width: 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;} Talk Bubble（聊天框）
#talkbubble { width: 120px; height: 80px; background: red; position: relative; -moz-border-radius: 10px; -webkit-border-radius: 10px; border-radius: 10px;}#talkbubble:before { content:""; position: absolute; right: 100%; top: 26px; width: 0; height: 0; border-top: 13px solid transparent; border-right: 26px solid red; border-bottom: 13px solid transparent;} 12 Point Burst（爆炸形状）
#burst-12 { background: red; width: 80px; height: 80px; position: relative; text-align: center;}#burst-12:before, #burst-12:after { content: ""; position: absolute; top: 0; left: 0; height: 80px; width: 80px; background: red;}#burst-12:before { -webkit-transform: rotate(30deg); -moz-transform: rotate(30deg); -ms-transform: rotate(30deg); -o-transform: rotate(30deg);}#burst-12:after { -webkit-transform: rotate(60deg); -moz-transform: rotate(60deg); -ms-transform: rotate(60deg); -o-transform: rotate(60deg);} Yin Yang(阴阳八卦)
#yin-yang { width: 96px; height: 48px; background: #eee; border-color: red; border-style: solid; border-width: 2px 2px 50px 2px; border-radius: 100%; position: relative;}#yin-yang:before { content: ""; position: absolute; top: 50%; left: 0; background: #eee; border: 18px solid red; border-radius: 100%; width: 12px; height: 12px;}#yin-yang:after { content: ""; position: absolute; top: 50%; left: 50%; background: red; border: 18px solid #eee; border-radius:100%; width: 12px; height: 12px;} Badge Ribbon(徽章丝带)
#badge-ribbon { position: relative; background: red; height: 100px; width: 100px; -moz-border-radius: 50px; -webkit-border-radius: 50px; border-radius: 50px;}#badge-ribbon:before,#badge-ribbon:after { content: ''; position: absolute; border-bottom: 70px solid red; border-left: 40px solid transparent; border-right: 40px solid transparent; top: 70px; left: -10px; -webkit-transform: rotate(-140deg); -moz-transform: rotate(-140deg); -ms-transform: rotate(-140deg); -o-transform: rotate(-140deg);}#badge-ribbon:after { left: auto; right: -10px; -webkit-transform: rotate(140deg); -moz-transform: rotate(140deg); -ms-transform: rotate(140deg); -o-transform: rotate(140deg);} Space Invader（太空入侵者）
#space-invader{ box-shadow: 0 0 0 1em red, 0 1em 0 1em red, -2.5em 1.5em 0 .5em red, 2.5em 1.5em 0 .5em red, -3em -3em 0 0 red, 3em -3em 0 0 red, -2em -2em 0 0 red, 2em -2em 0 0 red, -3em -1em 0 0 red, -2em -1em 0 0 red, 2em -1em 0 0 red, 3em -1em 0 0 red, -4em 0 0 0 red, -3em 0 0 0 red, 3em 0 0 0 red, 4em 0 0 0 red, -5em 1em 0 0 red, -4em 1em 0 0 red, 4em 1em 0 0 red, 5em 1em 0 0 red, -5em 2em 0 0 red, 5em 2em 0 0 red, -5em 3em 0 0 red, -3em 3em 0 0 red, 3em 3em 0 0 red, 5em 3em 0 0 red, -2em 4em 0 0 red, -1em 4em 0 0 red, 1em 4em 0 0 red, 2em 4em 0 0 red; background: red; width: 1em; height: 1em; overflow: hidden; margin: 50px 0 70px 65px; } TV Screen（电视屏幕）
#tv { position: relative; width: 200px; height: 150px; margin: 20px 0; background: red; border-radius: 50% / 10%; color: white; text-align: center; text-indent: .1em;}#tv:before { content: ''; position: absolute; top: 10%; bottom: 10%; right: -5%; left: -5%; background: inherit; border-radius: 5% / 50%;} Chevron（雪佛龙）
#chevron { position: relative; text-align: center; padding: 12px; margin-bottom: 6px; height: 60px; width: 200px;}#chevron:before { content: ''; position: absolute; top: 0; left: 0; height: 100%; width: 51%; background: red; -webkit-transform: skew(0deg, 6deg); -moz-transform: skew(0deg, 6deg); -ms-transform: skew(0deg, 6deg); -o-transform: skew(0deg, 6deg); transform: skew(0deg, 6deg);}#chevron:after { content: ''; position: absolute; top: 0; right: 0; height: 100%; width: 50%; background: red; -webkit-transform: skew(0deg, -6deg); -moz-transform: skew(0deg, -6deg); -ms-transform: skew(0deg, -6deg); -o-transform: skew(0deg, -6deg); transform: skew(0deg, -6deg);} Magnifying Glass（放大镜）
#magnifying-glass{ font-size: 10em; /* This controls the size. */ display: inline-block; width: 0.4em; height: 0.4em; border: 0.1em solid red; position: relative; border-radius: 0.35em;}#magnifying-glass::before{ content: ""; display: inline-block; position: absolute; right: -0.25em; bottom: -0.1em; border-width: 0; background: red; width: 0.35em; height: 0.08em; -webkit-transform: rotate(45deg); -moz-transform: rotate(45deg); -ms-transform: rotate(45deg); -o-transform: rotate(45deg);} Facebook Icon（Facebook图标）
#facebook-icon { background: red; text-indent: -999em; width: 100px; height: 110px; border-radius: 5px; position: relative; overflow: hidden; border: 15px solid red; border-bottom: 0;}#facebook-icon::before { content: "/20"; position: absolute; background: red; width: 40px; height: 90px; bottom: -30px; right: -37px; border: 20px solid #eee; border-radius: 25px;}#facebook-icon::after { content: "/20"; position: absolute; width: 55px; top: 50px; height: 20px; background: #eee; right: 5px;} Cone(圆锥形)
#cone { width: 0; height: 0; border-left: 70px solid transparent; border-right: 70px solid transparent; border-top: 100px solid red; -moz-border-radius: 50%; -webkit-border-radius: 50%; border-radius: 50%;} Moon(月亮)
#moon { width: 80px; height: 80px; border-radius: 50%; box-shadow: 15px 15px 0 0 red;} Cross（十字架）
#cross { background: red; height: 100px; position: relative; width: 20px;}#cross:after { background: red; content: ""; height: 20px; left: -40px; position: absolute; top: 40px; width: 100px;}