css 三角形的制作

2023-11-08 23:18•css•阅读 2007

    <style>
        #sanjiao{
            width: 0px;
            height: 0px;
            border-top:10px solid black;
            border-left: 10px solid transparent;
            border-right: 10px solid transparent;
        }
   
    </style>
</head>
<body>
    <span ></span>