1、新建html文档。
3、书写css代码。.impress-enabled .step.active .show3 p { top: 90px; }.impress-enabled .step.active .show4 img { left: auto; right: 0; width: 400px; }.impress-enabled .step.active .show4 h2 { left: 0; top: 0; }.impress-enabled .step.active .show4 p, .impress-enabled .step.active .show4 p img { left: 0; }.impress-enabled .step.active .show4 p { top: 90px; }.impress-supported .list_show p img { width: 460px; }.impress-enabled .step.active .show5 img { left: auto; right: 0; width: 300px; box-shadow: 5px 0 10px rgba(0, 0, 0, .2); }.impress-enabled .step.active .show5 h2 { left: 0; top: 0; }.impress-enabled .step.active .show5 p, .impress-enabled .step.active .show5 p img { top: 40px; left: 0; width: 700px; }.impress-enabled .step.active .list_show p.m160, .impress-enabled .step.active .show1 p.m160, .impress-enabled .step.active .show2 p.m160, .impress-enabled .step.active .show3 p.m160, .impress-enabled .step.active .show4 p.m160, .impress-enabled .step.active .show5 p.m160 { top: 160px; }.impress-enabled .step.active .list_show p.end { top: 0; left: 0; font-size: 36px; }.gotop { display: none; }.impress-supported .refresh img { width: 160px; height: 160px; opacity: 0.8; left: 290px; top: 100px; cursor: pointer; }.impress-not-supported .refresh { display: none; }.impress-not-supported .gotop { position: fixed; width: 60px; height: 60px; right: 120px; bottom: 60px; }.impress-not-supported .gotop img { background: transparent; filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#51ffffff, endColorstr=#51ffffff);background: rgba(255, 255, 255, .2); border-radius: 10px; padding: 10px; }
5、代码整体结构。
