使用CSS绘制几何图形指南-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_29947843/article/details/116334872

本文介绍了如何使用CSS创建各种图形，包括圆形、正方形、长方形、椭圆以及不同方向的三角形和平行四边形，还有六角形、五角星和爱心等复杂形状。通过这些实例，你可以掌握CSS在网页设计中的图形绘制技巧。

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1.圆形

.circle{    
		width: 100px;      
		height: 100px;      
		background-color:red;      
		border-radius: 50%;      
		-moz-border-radius: 50%;      
		-webkit-border-radius: 50%;    
}

2.正方形

#square {
	width:100px;
	height: 100px;
	background: red;
}

3.长方形

#rectangle {
	width: 200px;
	height: 100px;
	background: red;
}

4.椭圆

#oval {
	width: 200px;
	height: 100px;
	background: red;
	-moz-border-radius: 100px / 50px;
	-webkit-border-radius: 100px / 50px;
	border-radius: 100px / 50px;
}

5.上三角

#triangle-up {
	width: 0;
	height: 0;
	border-left: 50px solid transparent;
	border-right: 50px solid transparent;
	border-bottom: 100px solid red;
}

6.下三角

#triangle-down {
   width: 0;
   height: 0;
   border-left: 50px solid transparent;
   border-right: 50px solid transparent;
   border-top: 100px solid red;
}

7.左三角

#triangle-left {
    width: 0;
    height: 0;
    border-top: 50px solid transparent;
    border-right: 100px solid red;
    border-bottom: 50px solid transparent;
}

8.右三角

#triangle-right {
    width: 0;
    height: 0;
    border-top: 50px solid transparent;
    border-left: 100px solid red;
    border-bottom: 50px solid transparent;
}

9.平行四边形

#parallelogram {
    width: 150px;
    height: 100px;
    margin-left:20px;
    -webkit-transform: skew(20deg);
    -moz-transform: skew(20deg);
    -o-transform: skew(20deg);
    background: red;
}

10.梯形

#trapezoid {
    border-bottom: 100px solid red;
    border-left: 50px solid transparent;
    border-right: 50px solid transparent;
    height: 0;
    width: 100px;
}

11.六角形

#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;
}

12.五角星

#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: '';
}

13.爱心

#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%;
}

CSS常见的图形绘图