夜间开关js
function mySwitch() { var oBody = document.getElementById("mybody"); var oOnoff = document.getElementById("myonoff"); if (oOnoff.src.match("bulbon")) { oOnoff.src = "http://www.runoob.com/images/pic_bulboff.gif"; oBody.style.background = "black"; oBody.style.color = "gray" } else { oOnoff.src = "http://www.runoob.com/images/pic_bulbon.gif"; oBody.style.background = "white"; oBody.style.color = "black" }
父模板html
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>MSDN导航栏</title> <link rel="stylesheet" type="text/css" href="112.css"> <link rel="stylesheet" href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css"> <script src="http://cdn.static.runoob.com/libs/jquery/2.1.1/jquery.min.js"></script> <script src="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/js/bootstrap.min.js"></script> <script src="112.js"></script> </head> <body id="mybody"> <nav class="navbar navbar-inverse" role="navigation"> <div class="container-fluid"> <div class="navbar-header"> <a class="navbar-brand" href="#">首页</a> </div> <div> <ul class="nav navbar-nav"> <li><a href="#" onclick="">登陆</a></li> <li><a href="#" onclick="">注册</a></li> <li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown"> 设置 <b class="caret"></b> </a> <ul class="dropdown-menu"> <li><a href="#">收藏</a></li> <li><a href="#">分享</a></li> <li><a href="#">搜索</a></li> <li class="divider"></li> <li><a href="#">点赞</a></li> </ul> </li> <li><a href="#">||</a></li> </ul> </div> <div style="float: left"> <img id="myonoff" onclick="mySwitch()" src="http://www.runoob.com/images/pic_bulbon.gif" style="40px" > </div> <div> <input type="text" name="user" id="user" placeholder="请输入内容"> <input type="button" value="搜索" class="btn btn-success" onclick=""> </div> </div> </nav> <nav class="navbar navbar-inverse navbar-fixed-bottom" role="navigation"> <ul class="nav navbar-nav"> <li><img src="http://www.gzcc.cn/2016/images/footer1-logo.png"></li> <li style="color: bisque;">版权所有@</li> </ul> </nav> <div> <div class="a"> <a href="https://msdn.itellyou.cn/"><img src="https://msdn.itellyou.cn/images/itellyou.cn.png"></a> <div class="url"><a href="https://msdn.itellyou.cn/">MSDN</a></div> </div> </div> </body> </html>
css
img { width: 400px; /*设置图片的大小*/ } div.a { border-style: solid; width: 400px; float: left; } div.a img { width: 100%; heigh: aute; } div.url { text-align: center; padding: 2px; }
