批改状态:合格
老师批语:只能说一摸一样

<!DOCTYPE html><html><head><meta charset="utf-8" /><meta name="viewport" content="width=device-width, initial-scale=1"><title>标准盒</title><style>body{background:#fff; font-size:14px; font-family:"microsoft yahei",Verdana, Arial; line-height:150%; margin:5px 0 0 0; padding:0; color:#000;}div{margin:0 auto; padding:0;}h1,h2,h3,h4,h5,h6,ul,li,dl,dt,dd,form,img,p{margin:0; padding:0; border:none; list-style-type:none;}a{color:#000;text-decoration: none;}.clearfix:after{content:"."; display:block; height:0; clear:both;visibility:hidden;}*html .clearfix{height:1%;}*+html .clearfix{height:1%;}@font-face {font-family: "iconfont"; /* Project id */src: url('iconfont.ttf?t=1637035149022') format('truetype');}.iconfont {font-family: "iconfont" !important;font-size: 16px;font-style: normal;-webkit-font-smoothing: antialiased;-moz-osx-font-smoothing: grayscale;}.icon-gengduo:before {content: "\ec1c";}.icon-xiajiantou:before {content: "\e629";}.fl{float: left;}.headerbox{width: 100%;height: 60px;background: #fff;box-shadow: 0 4px 8px 0 rgba(7,17,27,.1);}.container{width: 1200px;margin: 0 auto;}.logo{width: 140px;height: 60px;}.logo img{max-width: 140px;max-height: 60px;}.navbox{margin-left: 20px;}.navbox li{float: left;position: relative;line-height: 60px;}.navbox>ul>li>a{display: block;padding:0 20px;font-size: 15px;}.navbox>ul>li a:hover{color:#f00;}.navbox>ul>li>a>span{padding-left: 5px;}.navbox>ul>li.more .iconfont{font-size: 18px;font-weight: bold;}.navbox .childbox{display: none;position:absolute;left:0;top:60px;width: 120px;background: #fff;box-shadow: 0 2px 4px rgba(0,0,0,.12);padding: 5px 0;}.navbox .childbox .child_item{height: 35px;line-height: 35px;padding: 0 20px;}.navbox>ul>li:hover .childbox{display: block;}</style></head><body><div class="headerbox"><div class="container clearfix"><div class="logo fl"><a href="./"><img src="images/PHPlogo.png" alt="名称" /></a></div><div class="navbox fl"><ul><li><a href="#">首页</a></li><li><a href="#">视频教程<span class="iconfont icon-xiajiantou"></span></a><div class="childbox"><div class="child_item"><a href="#">视频课程</a></div><div class="child_item"><a href="#">直播课程</a></div></div></li><li><a href="#">学习路径<span class="iconfont icon-xiajiantou"></span></a><div class="childbox"><div class="child_item"><a href="#">入门教程1</a></div><div class="child_item"><a href="#">入门教程2</a></div></div></li><li><a href="#">大前端</a></li><li><a href="#">资源下载</a></li><li><a href="#">技术文章</a></li><li><a href="#">社区</a></li><li class="more"><a href="#"><span class="iconfont icon-gengduo"></span></a><div class="childbox"><div class="child_item"><a href="#">编程词典</a></div><div class="child_item"><a href="#">APP下载</a></div></div></li></ul></div></div></div></body></html>
2、弹性盒模型
<!DOCTYPE html><html><head><meta charset="utf-8" /><meta name="viewport" content="width=device-width, initial-scale=1"><title>弹性盒</title><style>body{background:#fff; font-size:14px; font-family:"microsoft yahei",Verdana, Arial; line-height:150%; margin:5px 0 0 0; padding:0; color:#000;}div{margin:0 auto; padding:0;}h1,h2,h3,h4,h5,h6,ul,li,dl,dt,dd,form,img,p{margin:0; padding:0; border:none; list-style-type:none;}a{color:#000;text-decoration: none;}.clearfix:after{content:"."; display:block; height:0; clear:both;visibility:hidden;}*html .clearfix{height:1%;}*+html .clearfix{height:1%;}@font-face {font-family: "iconfont"; /* Project id */src: url('iconfont.ttf?t=1637035149022') format('truetype');}.iconfont {font-family: "iconfont" !important;font-size: 16px;font-style: normal;-webkit-font-smoothing: antialiased;-moz-osx-font-smoothing: grayscale;}.icon-gengduo:before {content: "\ec1c";}.icon-xiajiantou:before {content: "\e629";}.headerbox{display:flex;height: 60px;background: #fff;box-shadow: 0 4px 8px 0 rgba(7,17,27,.1);}.logo{flex-grow: 1;height: 60px;text-align: center;}.logo img{max-width: 100%;max-height: 60px;}.navbox{flex-grow: 3;}.navbox ul{display:flex;}.navbox li{flex-grow: 1;position: relative;line-height: 60px;}.navbox>ul>li>a{display: block;padding:0 20px;font-size: 15px;}.navbox>ul>li a:hover{color:#f00;}.navbox>ul>li>a>span{padding-left: 5px;}.navbox>ul>li.more .iconfont{font-size: 18px;font-weight: bold;}.navbox .childbox{display: none;position:absolute;left:0;top:60px;width: 120px;background: #fff;box-shadow: 0 2px 4px rgba(0,0,0,.12);padding: 5px 0;}.navbox .childbox .child_item{height: 35px;line-height: 35px;padding: 0 20px;}.navbox>ul>li:hover .childbox{display: block;}</style></head><body><div class="headerbox"><div class="logo"><a href="./"><img src="images/PHPlogo.png" alt="名称" /></a></div><div class="navbox"><ul><li><a href="#">首页</a></li><li><a href="#">视频教程<span class="iconfont icon-xiajiantou"></span></a><div class="childbox"><div class="child_item"><a href="#">视频课程</a></div><div class="child_item"><a href="#">直播课程</a></div></div></li><li><a href="#">学习路径<span class="iconfont icon-xiajiantou"></span></a><div class="childbox"><div class="child_item"><a href="#">入门教程1</a></div><div class="child_item"><a href="#">入门教程2</a></div></div></li><li><a href="#">大前端</a></li><li><a href="#">资源下载</a></li><li><a href="#">技术文章</a></li><li><a href="#">社区</a></li><li class="more"><a href="#"><span class="iconfont icon-gengduo"></span></a><div class="childbox"><div class="child_item"><a href="#">编程词典</a></div><div class="child_item"><a href="#">APP下载</a></div></div></li></ul></div></div></body></html>
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