使用CSS content的attr实现鼠标悬浮提示（tooltip）效果CSS实现鼠标悬浮无限向下级展示的实例代码CSS鼠标悬浮DIV后显示DIV外的按钮解决方法CSS3制作了一个动画导航效果(鼠标悬浮会放大)css实现缕空遮罩层的示例代码css3遮罩层镂空效果的多种实现方法CSS实现带遮罩层可关闭的弹窗效果CSS实现鼠标移至图片上显示遮罩层效果CSS 鼠标悬浮在图片上添加遮罩层效果的实现

w3cbest.com

 .dui-tips { position: relative; display: inline-block; cursor: pointer; } .dui-tips[data-tooltip]:after, .dui-tips[data-tooltip]:before { visibility: hidden; position: absolute; top: 50%; left: 100%; transition: all .3s; } .dui-tips[data-tooltip]:after { content: attr(data-tooltip); transform: translate(-5px, -50%); white-space: pre; padding: 5px 10px; background-color: rgba(0, 0, 0, 0); color: rgba(255, 255, 255, 0); } .dui-tips[data-tooltip]:before { content: ''; height: 0; width: 0; transform: translate(-10px, -50%); border-width: 5px 5px 5px 0; border-style: solid; border-color: transparent rgba(0, 0, 0, 0) transparent transparent; } .dui-tips:hover:after,.dui-tips:hover:before { transition: all .3s; visibility: visible; } .dui-tips:hover:after { color: rgba(255, 255, 255, 1); background-color: rgba(0, 0, 0, 0.8); transform: translate(5px, -50%); } .dui-tips:hover:before { border-color: transparent rgba(0, 0, 0, 0.8) transparent transparent; transform: translate(0px, -50%); }