css3写各种形状（收集篇...）

</pre>圆</p><p><pre name="code" class="css">width:120px;
height:120px;
border-radius:60px;

正方形

width:120px;
height:120px;

椭圆

width:200px;
height:100;
border-radius:100px;

三角（正）

width:0;
height:0;
border-bottom: 140px solid #fcf921;
border-left: 70px solid transparent;
border-right: 70px solid transparent;

三角形（倒）
width: 0;
height: 0;
border-top: 140px solid #20a3bf;
border-left: 70px solid transparent;
border-right: 70px solid transparent;三角形（左）
width: 0;
height: 0;
border-top: 70px solid transparent;
border-right: 140px solid #6bbf20;
border-bottom: 70px solid transparent;

三角形（右）

<pre name="code" class="css">width: 0;
height: 0;
border-top: 70px solid transparent;
border-left: 140px solid #ff5a00;
border-bottom: 70px solid transparent;

菱形

width: 120px;
height: 120px;
background: #1eff00;
/* Rotate */
-webkit-transform: rotate(-45deg);
-moz-transform: rotate(-45deg);
-ms-transform: rotate(-45deg);
-o-transform: rotate(-45deg);
transform: rotate(-45deg);
/* Rotate Origin */
-webkit-transform-origin: 0 100%;
-moz-transform-origin: 0 100%;
-ms-transform-origin: 0 100%;
-o-transform-origin: 0 100%;
transform-origin: 0 100%;
margin: 60px 0 10px 310px;

梯形
height: 0;
width: 120px;
border-bottom: 120px solid #ec3504;
border-left: 60px solid transparent;
border-right: 60px solid transparent;

平行四边形
width: 160px;
height: 100px;
background: #8734f7;
-webkit-transform: skew(30deg);
-moz-transform: skew(30deg);
-o-transform: skew(30deg);
transform: skew(30deg);

五角星
#star {
width: 0;
height: 0;
margin: 50px 0;
color: #fc2e5a;
position: relative;
display: block;
border-right: 100px solid transparent;
border-bottom: 70px solid #fc2e5a;
border-left: 100px solid transparent;
-moz-transform: rotate(35deg);
-webkit-transform: rotate(35deg);
-ms-transform: rotate(35deg);
-o-transform: rotate(35deg);
}

#star:before {
height: 0;
width: 0;
position: absolute;
display: block;
top: -45px;
left: -65px;
border-bottom: 80px solid #fc2e5a;
border-left: 30px solid transparent;
border-right: 30px solid transparent;
content: '';
-webkit-transform: rotate(-35deg);
-moz-transform: rotate(-35deg);
-ms-transform: rotate(-35deg);
-o-transform: rotate(-35deg);
}

#star:after {
content: '';
width: 0;
height: 0;
position: absolute;
display: block;
top: 3px;
left: -105px;
color: #fc2e5a;
border-right: 100px solid transparent;
border-bottom: 70px solid #fc2e5a;
border-left: 100px solid transparent;
-webkit-transform: rotate(-70deg);
-moz-transform: rotate(-70deg);
-ms-transform: rotate(-70deg);
-o-transform: rotate(-70deg);
}

六角星

#star_six_points {
width: 0;
height: 0;
display: block;
position: absolute;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
border-bottom: 100px solid #de34f7;
margin: 10px auto;
}

#star_six_points:after {
content: "";
width: 0;
height: 0;
position: absolute;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
border-top: 100px solid #de34f7;
margin: 30px 0 0 -50px;
}

五边形（创建CSS五边形需要结合两个图形：一个梯形，然后在它的上面放一个三角形，共同组成一个五边形）
#pentagon {
width: 54px;
position: relative;
border-width: 50px 18px 0;
border-style: solid;
border-color: #277bab transparent;
}

#pentagon:before {
content: "";
height: 0;
width: 0;
position: absolute;
top: -85px;
left: -18px;
border-width: 0 45px 35px;
border-style: solid;
border-color: transparent transparent #277bab;
}

六边形（像五边形一样，先制作一个长方形，然后在它的上面和下面各放置一个三角形。）
#hexagon {
width: 100px;
height: 55px;
background: #fc5e5e;
position: relative;
margin: 10px auto;
}

#hexagon:before {
content: "";
width: 0;
height: 0;
position: absolute;
top: -25px;
left: 0;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
border-bottom: 25px solid #fc5e5e;
}

#hexagon:after {
content: "";
width: 0;
height: 0;
position: absolute;
bottom: -25px;
left: 0;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
border-top: 25px solid #fc5e5e;
}

八角形（先制作两个相同的梯形，然后在两边分别放置一个三角形。）

#octagon {
width: 100px;
height: 100px;
background: #ac60ec;
position: relative;
}

#octagon:before {
content: "";
width: 42px;
height: 0;
position: absolute;
top: 0;
left: 0;
border-bottom: 29px solid #ac60ec;
border-left: 29px solid #f4f4f4;
border-right: 29px solid #f4f4f4;
}

#octagon:after {
content: "";
width: 42px;
height: 0;
position: absolute;
bottom: 0;
left: 0;
border-top: 29px solid #ac60ec;
border-left: 29px solid #f4f4f4;
border-right: 29px solid #f4f4f4;
}

心形（使用伪元素来制作，分别将伪元素旋转不同的角度，并修改transform-origin属性来元素的旋转中心点。）
#heart {
position: relative;
}

#heart:before,#heart:after {
content: "";
width: 70px;
height: 115px;
position: absolute;
background: red;
left: 70px;
top: 0;
-webkit-border-radius: 50px 50px 0 0;
-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%;
}

鸡蛋形（蛋形时椭圆形的一个变体，它的高度要比宽度稍大，并且设置正确的border-radius属性即可以制作出一个蛋形。）
#egg {
width: 136px;
height: 190px;
background: #ffc000;
display: block;
-webkit-border-radius: 63px 63px 63px 63px / 108px 108px 72px 72px;
border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
}

无穷符号（无穷符号可以通过border属性和设置伪元素的角度来实现。）
#infinity {
width: 220px;
height: 100px;
position: relative;
}

#infinity:before,#infinity:after {
content: "";
width: 60px;
height: 60px;
position: absolute;
top: 0;
left: 0;
border: 20px solid #06c999;
-moz-border-radius: 50px 50px 0;
border-radius: 50px 50px 0 50px;
-webkit-transform: rotate(-45deg);
-moz-transform: rotate(-45deg);
-ms
919d
-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);
}

消息提示框
#comment_bubble {
width: 140px;
height: 100px;
background: #088cb7;
position: relative;
-moz-border-radius: 12px;
-webkit-border-radius: 12px;
border-radius: 12px;
}

#comment_bubble:before {
content: "";
width: 0;
height: 0;
right: 100%;
top: 38px;
position: absolute;
border-top: 13px solid transparent;
border-right: 26px solid #088cb7;
border-bottom: 13px solid transparent;
}

吃豆小怪兽（先在一个圆形里面制作一个透明的三角形。）
#pacman {
width: 0;
height: 0;
border-right: 70px solid transparent;
border-top: 70px solid #ffde00;
border-left: 70px solid #ffde00;
border-bottom: 70px solid #ffde00;
border-top-left-radius: 70px;
border-top-right-radius: 70px;
border-bottom-left-radius: 70px;
border-bottom-right-radius: 70px;
}