Correction status:qualified
Teacher's comments:
代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>0323作业</title> <style type="text/css"> /*关于水平居中 1.父元素内为行内元素,多行行内元素,不定宽块元素的,都是通过设置父元素text-align:center属性实现子元素水平居中 2.不定宽的块元素需要先将子元素display属性值转为display:inline,然后在设置父元素text-align属性;*/ .box1 { width:200px; height: 200px; text-align: center; background-color:blue; } .box1 span { line-height: 200px; } .box2 { width:200px; height: 200px; /*设置水平居中*/ text-align: center; background-color:brown; /*转为单元格*/ display: table-cell; /*设置垂直居中*/ vertical-align:middle; } .box3 { width: 200px; height: 200px; background-color: red; /*转为单元格*/ display: table-cell; /*设置垂直居中*/ vertical-align: middle; } .box3 .text { background-color: yellow; width:100px; /*通过设置margin:auto来实现水平居中*/ margin:auto; } .box4 { width: 200px; height: 200px; background-color: green; /*设置水平居中*/ text-align: center; display: table-cell; /*vertical-align:bottom; */ } .box4 ul { margin: 0; padding: 0; line-height: 200px; } .box4 li { list-style: none; display: inline; } </style> </head> <body> <div class="box1"> <span>一行行内元素</span> </div> <hr> <div class="box2"> <span>我里面有多行行内元素,不信你自己看。</span> </div> <hr> <div class="box3"> <p class="text">我是一个块元素</p> </div> <hr> <div class="box4"> <ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> <li>5</li> </ul> </div> </body> </html>
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