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css3画图那些事（三角形、圆形、梯形等）

2018-07-25 13:18:13来源：博客园阅读 ()

闲来无事，写写图形。当时巩固一下css3吧.。前端小白，写的不好还请前辈多指教。

三角形

{  
    width: 0;
    height: 0;
    border-bottom: 140px solid red ;
    border-right: 70px solid transparent;
    border-left: 70px solid transparent;
}

圆形

{
        width: 0px;
        height: 0px;
        border:50px solid red;
        border-radius: 50%;
}

梯形

{
    width: 120px;
    height: 0px;
    border-bottom:120px solid red ;
    border-right: 60px solid transparent;
    border-left: 60px solid transparent;
}

平行四边形

{
        width: 0px;
        height: 0px;
        border:100px solid red ;
        transform: skew(30deg);
}

菱形（实现方法有很多，这里只是两个三角形合并，也就是正三角和倒三角）

.a{
    width: 0;
    height: 0;
    border-bottom: 140px solid red ;
    border-right: 70px solid transparent;
    border-left: 70px solid transparent;                            
}
.b{
    width: 0;
    height: 0;
    border-top : 140px solid red;
    border-left : 70px solid transparent; 
    border-right : 70px solid transparent; 
    }

椭圆形

    width: 200px;
    height: 50px;
    border:1px solid red;
    border-radius:100px;

五边形（这里使用一个三角形加一个正方形实现）

    .a{
        width: 0;
        height: 0;
        border-bottom  : 140px solid red;
        border-left : 70px solid transparent; 
        border-right : 70px solid transparent;                 
    }

    .b{
        width: 140px;
        height: 140px;
        display: inline-block;
        border:1px solid red;
        background-color: red ;
    }

贪吃蛇蛇头你敢信？哈哈

{
        width: 0px;
        height: 0px;
        border-radius: 50%;
        border:140px solid red;
        border-right :140px solid transparent; 
}

扇形

{
        width: 0px;
        height: 0px;
        border-radius: 50%;
        border :140px solid transparent; 
        border-bottom:140px solid red;
}

登录icon（两个div，其中一个div设置一个margin-top的负值，移上来就好了）

    .a{
        width: 0px;
        height: 0px;
        border-radius: 50%;
        border: 30px solid #000;
    }
    .b{
        width: 0px;
        border: 50px solid #000;
        border-top-right-radius: 50px;
        border-top-left-radius: 50px;
        border-top-width: 25px;
        border-bottom-width: 25px;
    }

再来一个小视频 （用4个div拼接起来，两个圆圈，一个长方形，一个梯形就好了）

    .a{    
        display: inline-block;
        width: 20px;
        height: 20px;
        border-radius: 50%;
        border: 1px solid #000;
    }

    .b{    
        display: inline-block;
        width: 30px;
        height: 30px;
        border-radius: 50%;
        border: 1px solid #000;
    }
    .c{
        width: 80px;
        height: 50px;
        border: 1px solid #000;
        border-radius: 10px;
        }
    .d{
        height: 40px;
        border-right: 30px solid #000;
        border-top: 16px solid transparent;
        border-bottom: 16px solid transparent;
        border-radius: 10px;
        }



<div>
    <div class="a" style="margin-left:160px ;margin-top: 100px;"></div>
    <div class="b" ></div>
</div>
<div>
    <div class="c" style="margin-left:150px ; display: inline-block;vertical-align: top;"></div>
    <div class="d" style="margin-left:0px ; display: inline-block;margin-top: -10px;"></div>
</div>

再来一个垃圾桶三个图形叠加。正方形，椭圆，和梯形。然后在设置一个倾斜就好了

.a{    
        width: 0px;
        height: 0px;
        border-radius: 4px;
        border: 8px solid #000;
        border-top-width: 0;
        margin-left:164px ;
        margin-top: 100px;
    }

    .b{    
        width: 0px;
        height: 0px;
        border-radius:8px ;
        border-top: 15px solid #000;
        border-left: 132px solid #000;
        margin-left: 108px;
    }
    .c{
        width: 78px;
        border-bottom-width: 100px;
        border-top: 100px solid #000;
        border-left: 18px solid transparent;
        border-right: 18px solid transparent;
    }



    <div style="display: inline-block;transform: rotate(9deg);">
        <div class="a"></div>
        <div class="b"></div>
    </div>
    <div style="margin-left: 110px; margin-top: 18px;">
        <div class="c"></div>
    </div>

最后老夫叫出一只大鸟，怕不怕。

<!DOCTYPE html>
<html>
<head>
    <title></title>
</head>
<style type="text/css">
    body{
        font-size: 0;
        text-align: center;
    }
    .wrap{
        position: relative;
        width: 500px;
        margin: 0 auto;
    }
    .a{    
        display: inline-block;
        margin-top: 30px;
        width: 250px;
        height: 240px;
        background-color:#f2b22e;
        border: 1px solid #f2b22e;
        border-radius: 60% 60% 70% 70%;
    }

    .b{    
        display: inline-block;
        width: 0;
        height: 0;
        border-bottom:40px solid #f2b22e;
        border-right: 60px solid transparent; 
        border-left: 12px solid transparent; 
        transform: rotate(40deg);
        position: absolute;
        top: 26px;
        right: 115px;
    }
    .c{
        display: inline-block;
        width: 0;
        height: 0;
        border-top:60px solid #f2b22e;
        border-right: 60px solid transparent; 
        border-left: 12px solid transparent; 
        transform: rotate(140deg);
        position: absolute;
        top: 26px;
        left: 105px;
    }
    .d{
        width: 100px;
        height: 40px;
        border-radius: 50%;
        border:1px solid #f2b22e;
        background-color:  #f2b22e;
        transform: rotate(50deg);
        position: absolute;
        top: 150px;
        right: 72px;
    }
    .e{
        width: 100px;
        height: 40px;
        border-radius: 50%;
        border:1px solid #f2b22e;
        background-color:  #f2b22e;
        transform: rotate(-50deg);
        position: absolute;
        top: 150px;
        left: 72px;
    }
    .f{
        width: 40px;
        height: 40px;
        border: 20px solid #fff;
        border-radius: 50%;
        background-color: #000;
        position: absolute;
        top: 80px;
        left: 155px;
    }
    .g{
        width: 40px;
        height: 40px;
        border: 20px solid #fff;
        border-radius: 50%;
        background-color: #000;
        position: absolute;
        top: 80px;
        right: 155px;
    }
    .h{
        width: 0;
        height: 0;
        border-top:20px solid #e27326;
        border-left:20px solid transparent;
        border-right:20px solid transparent;
        position: absolute;
        top: 147px;
        left: 230px;
    }
    .i{
        width: 160px;
        height: 100px;
        border:1px solid #f3cc74;
        background-color: #f3cc74;
        border-radius: 50%;
        position: absolute;
        bottom: 0px;
        left: 170px;
    }
    .j{
        width: 12px;
        border-bottom:20px solid #e27326;
        border-radius: 50%;
        position: absolute;
    }
    .j_{
        bottom: 14px;
        left: 163px;
    }
    .k{
        left: 155px;
        bottom: 18px;
    }
    .l{
        left: 170px;
        bottom: 10px;
    }
    .n{
        bottom: 10px;
        right: 163px;
    }
    .m{
        bottom: 18px;
        right: 155px;
    }
    .o{
        bottom: 5px;
        right: 170px;
    }
</style>
<body>
    <div class="wrap">
        <div class="a"></div>
        <div class="b"></div>
        <div class="c"></div>
        <div class="d"></div>
        <div class="e"></div>
        <div class="f"></div>
        <div class="g"></div>
        <div class="h"></div>
        <div class="i"></div>
        <div class="j j_"></div>
        <div class="j k"></div>
        <div class="j l"></div>
        <div class="j n"></div>
        <div class="j m"></div>
        <div class="j o"></div>
    </div>
</body>    
</html>