lovecoding
/
VIP29


			
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <!-- 使用  行内 style   -->
    <!-- style标签  -->
    <style type="text/css" >
        <!--   类选择器 样式 键值对     -->
        div {
            height: 100px;
            width: 100px;
            border: 1px solid red;
            /*display: inline;*/
        }

        span {
            height: 100px;
            width: 100px;
            border: 1px solid red;
            display: block;
        }
        /* . class 名称 */
        .span1 {
            height: 100px;
            width: 100px;
            border: 1px solid black;
            display: block;
        }

        /* id选择器  #   */
        #span2 {
            height: 200px;
            width: 200px;
            border: 1px solid black;
            display: block;
        }

    </style>
</head>

<body>
    <!-- div 行元素 每一个占一行 -->
    <div>123</div>
    <div>456</div>


    <span class="span1" >678</span>
    <span class="span1" >789</span>
    <span id="span2" >678</span>
    <span id="span3" >789</span>
</body>
</html>