实现功能如下:
1. 二维码展示功能;
2. “回到顶部”功能。(选择“全屏预览”,滑动滚动条,查看回到顶部功能)
效果图:
图(1) 初始效果
图(2) 鼠标悬浮效果
实例代码:
工具条 body{ background-color:#69C; } .toolbar{ position:fixed; left:50%; bottom:5px; margin-left:-26px; } .toolbar-item{ position:relative; display:block; width:52px; height:52px; background-image:url(http://cdn.attach.qdfuns.com/notes/pics/201703/01/160208u95waa2sfwt27hwh.png); background-repeat:no-repeat; margin-top:1px; -webkit-transition:background-position 1s; -moz-transition:background-position 1s; -ms-transition:background-position 1s; -o-transition:background-position 1s; transition:background-position 1s; } .toolbar-item-wenxin{ background-position:0 -798px; } .toolbar-item-wenxin:hover{ background-position:0 -860px; } .toolbar-item-feedback{ background-position:0 -426px; } .toolbar-item-feedback:hover{ background-position:0 -488px; } .toolbar-item-app{ background-position:0 -550px; } .toolbar-item-app:hover{ background-position:0 -612px; } .toolbar-item-top{ background-position:0 -674px; } .toolbar-item-top:hover{ background-position:0 -736px; } .toolbar-layer{ position:absolute; right:46px; bottom:-10px; width:172px; background-image:url(http://cdn.attach.qdfuns.com/notes/pics/201703/01/160208u95waa2sfwt27hwh.png); background-repeat:no-repeat; opacity:0; filter:alpha(opacity=0); -webkit-transform-origin:95% 95%; -moz-transition-origin:95% 95%; -ms-transition-origin:95% 95%; -o-transition-origin:95% 95%; transform-origin:95% 95%; -webkit-transition:scale(0.01); -moz-transition:scale(0.01); -ms-transition:scale(0.01); -o-transition:scale(0.01); transform:scale(0.01); -webkit-transition:all 1s; -moz-transition:all 1s; -ms-transition:all 1s; -o-transition:all 1s; transition:all 1s; } .toolbar-item-wenxin .toolbar-layer{ height:212px; background-position:0 0; } .toolbar-item-app .toolbar-layer{ height:194px; background-position:0 -222px; } .toolbar-item:hover .toolbar-layer{ opacity:1; filter:alpha(opacity=100); -webkit-transition:scale(1); -moz-transition:scale(1); -ms-transition:scale(1); -o-transition:scale(1); transform:scale(1); } 1
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