Correction status:Uncorrected
Teacher's comments:
3月21号作业
基本选择器:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <title>3-21基本选择器</title> <meta name="description" content=""> <meta name="keywords" content=""> <link href="" rel="stylesheet"> <style type="text/css"> /*元素选择器*/ ul { padding: 0; margin: 0 auto; width: 450px; border: 1px dashed #666; padding: 10px 5px; } ul li{ text-align: center; list-style: none; } /*class选择器*/ .h2 { text-align: center; } .html { color: blue; } /*父子选择器*/ ul li{ background-color: #EFEFEF; } /*id选择器*/ #css { color: red; } /*同配选择器*/ ul * { font-size: 1.6em; } /*子选择器*/ ul > li{ color: purple; } /*相邻兄弟选择器,只选id后面一个用 “+” 全部用 “~” */ #mysql + li { color: black; font-size: xx-large; font-weight: bold; } #mysql ~ li { background-color: pink; } </style> </head> <body> <h2 class="h2">必备技能</h2> <ul> <li class="html">html</li> <li id="css">css</li> <li>javascript</li> <li>php</li> <li id="mysql">mysql</li> <li>nginx</li> <li>linux</li> <li>不忘初心</li> <li>加油,你最棒</li> </ul> </body> </html>
点击 "运行实例" 按钮查看在线实例
属性选择器:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <title>3-21属性选择器</title> <meta name="description" content=""> <meta name="keywords" content=""> <link href="" rel="stylesheet"> <style type="text/css"> /*元素选择器*/ ul { padding: 0; margin: 0 auto; width: 450px; border: 1px dashed #666; padding: 10px 5px; } ul li{ text-align: center; list-style: none; } /*class选择器*/ .h2 { text-align: center; } /*选中所有有id属性的元素*/ *[id] { color: red ; font-size: 1.2em; background-color: #666; } /*根据属性的名和值来选元素*/ li[class="html"]{ background-color: peachpuff ; font-size: 1.3em; } /*选择class属性中包括指定单词的元素*/ li[class ~="script"]{ background-color: red; font-size: x-large; } /*选择以 ph 开头的类样式元素*/ li[class ^="ph"] { background-color: #D6D7D8; font-family: cursive; font-style: oblique; font-size: 1.2em; } /*以x结尾的类样式元素*/ li[class $="x"] { background-color: yellow; font-size: 1.3em; } li[class *="a"] { background-color:beige; color: brown; } </style> </head> <body> <h2 class="h2">必备技能</h2> <ul> <li class="html">html</li> <li id="css">css</li> <li class="script 2">javascript</li> <li class="php 1">php</li> <li class="php 2">php</li> <li id="mysql">mysql</li> <li class="nginx">nginx</li> <li class="nginx">linux</li> <li class="aahtml">不忘初心</li> <li class="aacss" php css>加油,你最棒</li> </ul> </body> </html>
点击 "运行实例" 按钮查看在线实例
手抄代码: