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;}

用CSS绘制最常见的40种形状和图形