<div class="toolbar"> <a href="javascript:;" class="toolbar-item toolbar-item-weixin"> <span class="toolbar-layer"></span> </a> <a href="javascript:;" class="toolbar-item toolbar-item-feedback"></a> <a href="javascript:;" class="toolbar-item toolbar-item-app"> <span class="toolbar-layer"></span> </a> <a href="javascript:;" class="toolbar-item toolbar-item-top"></a> </div>
1 .toolbar-item,.toolbar-layer{ 2 background-image: url("images/toolbar.png"); 3 background-repeat: no-repeat; 4 } 5 .toolbar{ 6 position: fixed;left: 50%;bottom: 5px;margin-left: -26px; 7 } 8 .toolbar-item{ 9 display: block;width: 52px;;height: 52px; 10 margin-top: 1px;position: relative;transition: background-position 1s; 11 } 12 .toolbar-item:hover .toolbar-layer{opacity: 1;filter: alpha(opacity=100);transform: scale(1)} 13 .toolbar-item-weixin{background-position: 0 -798px} 14 .toolbar-item-weixin:hover{background-position: 0 -860px} 15 .toolbar-item-weixin .toolbar-layer{height: 212px;background-position: 0 0} 16 .toolbar-item-feedback{background-position: 0 -426px} 17 .toolbar-item-feedback:hover{background-position: 0 -488px} 18 .toolbar-item-app{background-position: 0 -550px} 19 .toolbar-item-app:hover{background-position: 0 -612px} 20 .toolbar-item-app .toolbar-layer{height: 194px;background-position:0 -222px} 21 .toolbar-item-top{background-position: 0 -674px} 22 .toolbar-item-top:hover{background-position: 0 -736px} 23 24 .toolbar-layer{ 25 position: absolute; 26 right: 52px; 27 bottom: -6px; 28 width: 172px; 29 background-image: url("images/toolbar.png"); 30 background-repeat: no-repeat; 31 opacity: 0; 32 filter: alpha(opacity=0); 33 transform-origin: 95% 95%; 34 transform: scale(0.01); 35 transition: all 1s; 36 }
1 .toolbar-item,.toolbar-layer{ 2 background-image: url("images/toolbar.png"); 3 background-repeat: no-repeat; 4 } 5 .toolbar{ 6 position: fixed;left: 50%;bottom: 5px;margin-left: -26px; 7 } 8 .toolbar-item{ 9 display: block;width: 52px;;height: 52px; 10 margin-top: 1px;position: relative;transition: background-position 1s; 11 } 12 .toolbar-item:hover .toolbar-layer{opacity: 1;filter: alpha(opacity=100);transform: scale(1)} 13 .toolbar-item-weixin{background-position: 0 -798px} 14 .toolbar-item-weixin:hover{background-position: 0 -860px} 15 .toolbar-item-weixin .toolbar-layer{height: 212px;background-position: 0 0} 16 .toolbar-item-feedback{background-position: 0 -426px} 17 .toolbar-item-feedback:hover{background-position: 0 -488px} 18 .toolbar-item-app{background-position: 0 -550px} 19 .toolbar-item-app:hover{background-position: 0 -612px} 20 .toolbar-item-app .toolbar-layer{height: 194px;background-position:0 -222px} 21 .toolbar-item-top{background-position: 0 -674px} 22 .toolbar-item-top:hover{background-position: 0 -736px} 23 24 .toolbar-layer{ 25 position: absolute; 26 right: 52px; 27 bottom: -6px; 28 width: 172px; 29 background-image: url("images/toolbar.png"); 30 background-repeat: no-repeat; 31 opacity: 0; 32 filter: alpha(opacity=0); 33 transform-origin: 95% 95%; 34 transform: scale(0.01); 35 transition: all 1s; 36 }
设置透明度:opacity: 0;
兼容ie方式filter: alpha(opacity=0);
设置起始点:transform-origin: 95% 95%;
缩放动画:transform: scale(0.01);