<style> html{font-family:sans-serif;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}body{margin:0}article,aside,details,figcaption,figure,footer,header,hgroup,main,nav,section,summary{display:block}audio,canvas,progress,video{display:inline-block;vertical-align:baseline}audio:not([controls]){display:none;height:0}[hidden],template{display:none}a{background:transparent}a:active,a:hover{outline:0}abbr[title]{border-bottom:1px dotted}b,strong{font-weight:bold}dfn{font-style:italic}h1{font-size:2em;margin:0.67em 0}mark{background:#ff0;color:#000}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sup{top:-0.5em}sub{bottom:-0.25em}img{border:0}svg:not(:root){overflow:hidden}figure{margin:1em 40px}hr{-moz-box-sizing:content-box;box-sizing:content-box;height:0}pre{overflow:auto}code,kbd,pre,samp{font-family:monospace, monospace;font-size:1em}button,input,optgroup,select,textarea{color:inherit;font:inherit;margin:0}button{overflow:visible}button,select{text-transform:none}button,html input[type="button"],input[type="reset"],input[type="submit"]{-webkit-appearance:button;cursor:pointer}button[disabled],html input[disabled]{cursor:default}button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0}input{line-height:normal}input[type="checkbox"],input[type="radio"]{-moz-box-sizing:border-box;box-sizing:border-box;padding:0}input[type="number"]::-webkit-inner-spin-button,input[type="number"]::-webkit-outer-spin-button{height:auto}input[type="search"]{-webkit-appearance:textfield;-moz-box-sizing:content-box;box-sizing:content-box}input[type="search"]::-webkit-search-cancel-button,input[type="search"]::-webkit-search-decoration{-webkit-appearance:none}fieldset{border:1px solid #c0c0c0;margin:0 2px;padding:0.35em 0.625em 0.75em}legend{border:0;padding:0}textarea{overflow:auto}optgroup{font-weight:bold}table{border-collapse:collapse;border-spacing:0}td,th{padding:0} </style> <style> @import url("http://fonts.googleapis.com/css?family=Lato"); * { margin: 0; padding: 0; box-sizing: border-box; } body { font: 14px/1 Lato, sans-serif; color: #555; background: #eee; } .gallery { 100%; margin: 30px auto; padding: 5px; margin-top:700px } .gallery > div { position: relative; float: left; padding: 5px; } .gallery > div > img { 260px; transition: .1s transform; transform: translateZ(0); /* hack */ } .gallery > div:hover { z-index: 1; } .gallery > div:hover > img { transform: scale(1.5, 1.5); transition: .3s transform; } .cf:before, .cf:after { display: table; content: ""; line-height: 0; } .cf:after { clear: both; } h1 { margin: 40px 0; font-size: 24px; text-align: center; text-transform: uppercase; } footer { margin: 80px 0; text-align: center; } </style> <script src="js/prefixfree.min.js"></script> </head> <body> <div class="gallery cf"> <div> <img src="../20150804200342_tc2Ee.thumb.700_0.jpeg" /> </div> <div> <img src="../20150804200400_rWfC2.thumb.700_0.jpeg" /> </div> <div> <img src="../20150804200336_2sWKc.thumb.700_0.jpeg" /> </div> <div> <img src="../20150913085048_KFeay.thumb.700_0.jpeg" /> </div> <div> <img src="../20150913084932_yT4iz.thumb.700_0.jpeg" /> </div> <div> <img src="../20150804200415_GMwA8.jpeg" /> </div> <div> <img src="../20150804200323_tBrCY.thumb.700_0.jpeg" /> </div> </div> <div style="text-align:center;clear:both;"> <script src="/gg_bd_ad_720x90.js" type="text/javascript"></script> <script src="/follow.js" type="text/javascript"></script> </div> </body> </html> 成功的引用到了外部样式表，添加了一个鼠标放上图片变大的样式
body> <div id="a1" style="500px; height:500px; background-color:#033; opacity:0.0;-moz-opacity:0.5;filter:alpha(opacity=50)" onclick="hua()"></div> </body> </html> <script type="text/jscript"> function hua() { var zuo = document.getElementById("a1"); kd = zuo.style.opacity; kd =parseFloat(kd)+0.01; if(parseFloat(kd)>=1) { return; } else { zuo.style.opacity = kd; window.setTimeout("hua()",20) } } </script> 用函数实现了使图片渐显的样式