<html><head lang="en"> <meta charset="UTF-8"> <title></title> <style> body{ /*设置字体大小*/ font-size: 30px; /*设置文字颜色*/ color: red; /*字体加粗*/ font-weight: bolder; } div{ /*复合属性,可用于设置颜色和图片*/ background: url("img/7.jpg"); /*设置背景的尺寸, cover跟随标签的尺寸显示*/ background-size: cover; 300px; height: 300px; /*水平居中,取值:left right center*/ text-align: center; /*都是隐藏内容,区别: 1.display会连同尺寸一起隐藏 2.visibility不会隐藏尺寸 */ display: none; visibility: hidden; /*设置光标的显示类型: crosshair pointer*/ cursor: pointer; } span{ /*背景颜色*/ background-color: blue; /*宽度*/ 300px; /*高度*/ height: 200px; /*行高,用于垂直居中*/ line-height: 200px; } a{ /*设置去除下划线,用于a标签*/ text-decoration: none; } .one{ /*设置缩进: % */ text-indent: 3%; } ul{ /*设置列表的类型: none square*/ list-style:square; } #main{ /*设置背景颜色*/ background-color: red; /*设置宽度*/ 90px; /*设置高度*/ height: 120px; /* 超出标签的内容处理:hidden, auto */ overflow: hidden; } </style> </head> <body> <!--<div>111111</div>--> <!--<span>2222222</span>--> <!--<p>33333333333</p>--> <div> <span>12112323322332</span> </div> <p class="one">21323243423434efwqewqfewqfewqfewq</p> <p>21323243423434fewqfewqfew</p> <p>21323243423434fewfew</p> <p>fewfewfewfewefw</p> <a href="#">百度一下</a> <ul> <li>111111</li> <li>111111</li> <li>111111</li> <li>111111</li> </ul> <div id="main">44444444444444444444</div> </body></html>