day6 固定定位与模式转换
<html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>固定广告</title> <style> *{ margin: 0; padding:0; } .top { height: 44px; background:url(images/top.png) no-repeat top center; position: fixed; width: 100%; /* 因为固定定位把元素转换为行内块元素,行内块元素的宽高与内容有关。 */ top: 0; left: 0; } .box { margin: 44px auto 0; width: 1002px; } .ad-1,.ad-r { position:fixed; top:100px; } .ad-r { right: 0; } </style> </head> <body> <img src="images/ad-1.png" alt=""class="ad-1"> <img src="images/ad-r.png" alt="" class="ad-r"> <div class="top"></div> <div class="box"> <img src="images/box.png" alt=""> </div> </body> </html>
效果图如下:
加油!