3 回答
TA贡献1784条经验 获得超7个赞
CSS:
.arrow-top,.arrow-right,.arrow-bottom,.arrow-left{
border: 20px solid green;
}
.arrow-top{
border-right-color: transparent;
border-left-color: transparent;
border-bottom-color: transparent;
}
.arrow-right{
border-right-color: transparent;
border-top-color: transparent;
border-bottom-color: transparent;
}
.arrow-bottom{
border-right-color: transparent;
border-left-color: transparent;
border-top-color: transparent;
}
.arrow-left{
border-top-color: transparent;
border-left-color: transparent;
border-bottom-color: transparent;
}
Html:
<span class="arrow-top"></span>
<span class="arrow-right"></span>
<span class="arrow-bottom"></span>
<span class="arrow-left"></span>
TA贡献1772条经验 获得超5个赞
1、新建一个html5网页,名称为index.html,在<body>代码中写上四个div,分别是向上、向下、向左,向右四个三角形,代码如下:
<div class="triangle-up"> <!--向上的三角--> </div>
<div class="triangle-down"> <!--向下的三角--> </div>
<div class="triangle-left"> <!--向左的三角--> </div>
<div class="triangle-right"> <!--向右的三角--> </div>
2、然后新建一个css文件style.css,并在index.html中引入,引入代码:<link rel="stylesheet" type="text/css" href="style.css">
3、先做向上的三角形,这里有两种写法,大家可以参考下。在css文件中输入以下代码:
第一种: .triangle-up {
width:0;
height:0;
border-left:30px solid transparent;
border-right:30px solid transparent;
border-bottom:30px solid #fff;
}
第二种:.triangle-up {
width:0;
height:0;
border:30px solid transparent;
border-bottom-color:#fff;
}
4、接下来写向下的三角形,继续在css文件中输入以下代码:
.triangle-down {
width:0;
height:0;
border-left:20px solid transparent;
border-right:20px solid transparent;
border-top:20px solid #0066cc;
}
5、然后是向左的三角形,代码为:
.triangle-left {
width:0;
height:0;
border-top:30px solid transparent;
border-bottom:30px solid transparent;
border-right:30px solid yellow;
}
6、最后是向右的三角形,代码为:
.triangle-right {
width:0;
height:0;
border-top:50px solid transparent;
border-bottom: 50px solid transparent;
border-left: 50px solid green;
}
- 3 回答
- 0 关注
- 1112 浏览
添加回答
举报