效果图如下↓↓↓↓↓ (知识点见代码注释)
HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>CSS3实现鼠标悬停显示消息提示框</title>
<meta http-equiv="X-UA-compatible" contnet="IE=edge">
<meta name="viewport" content="width=device-width" initial-scale="1">
<link rel="stylesheet" href="css/style.css">
<link rel="stylesheet" href="css/font-awesome.min.css">
</head>
<body>
<div class="nav">
<ul>
<li>
<a href="#" class="tooltip tooltip-effect-1">Home
<!-- 应用SVG做背景图片 -->
<span class="tooltip-content">
<!-- 应用文字图片,fa:Icon公共类; fa-camera:相机Icon; fa-fw:使i标签display:block; fa-spin:Icon动画效果; fa-border:Icon具有圆角边框; -->
<i class="fa fa-camera fa-fw"></i>
</span>
</a>
</li>
<li>
<a href="#" class="tooltip tooltip-effect-2">About me
<span class="tooltip-content"><i class="fa fa-heartbeat fa-fw"></i></span>
</a>
</li>
<li>
<a href="#" class="tooltip tooltip-effect-3">Photography
<span class="tooltip-content"><i class="fa fa-diamond fa-fw"></i></span>
</a>
</li>
<li>
<a href="#" class="tooltip tooltip-effect-4">Work
<span class="tooltip-content"><i class="fa fa-cogs fa-fw"></i></span>
</a>
</li>
<li>
<a href="#" class="tooltip tooltip-effect-5">Contact
<span class="tooltip-content"><i class="fa fa-comments fa-fw"></i></span>
</a>
</li>
</ul>
</div>
</body>
</html>
CSS
html {
width:100%;
height:100%;
/*屏幕旋转时文字大小不发生改变;*/
-webkit-text-size-adjust:none;
}
body {
margin:;
padding:;
width:100%;
height:100%;
background: #47c9af;
color:#74777b;
font-weight:;
font-size: 1.5em;
font-family:"Raleway","Arial";
}
ul {
list-style: none;
padding:;
margin:;
}
a:link,a:visited,a:focus {
text-decoration: none;
outline: none;
}
*,*:after,*:before {
/*padding(填充)和border(边框)都不要影响盒子原先设定的大小;*/
-webkit-box-sizing:border-box;
}
*:after,*:before {
display: block;
content:"";
}
/*清除浮动*/
*:after {
clear:both;
}
/*Navgaitor*/
.nav {
width:800px;
height:300px;
margin:200px auto;
}
.nav li {
display: inline-block;
margin:0 1em;
}
.tooltip {
display: inline-block;
font-weight:;
color:rgba(0,0,0,0.3);
padding:0.15em 0.25em 0 0;
position: relative;
z-index:;
transition: 0.4s;
}
.tooltip:hover {
color:rgba(255,255,255,1);
}
.tooltip-content {
position: absolute;
z-index:;
width:80px;
height:80px;
/*span相对于父元素a垂直居中:
left:50%;span的左侧距离a的左侧是a宽度一半的距离;
margin-left:-40px;左移相对于自身宽度的一半;
bottom:100%;span的底部距离a的底部是a高度一倍的距离,刚好在a的正上方;
*/
left:50%;
margin-left: -40px;
bottom:100%;
margin-bottom: 20px;
text-align: center;
padding-top: 22px;
/*应用svg文件做背景图片;*/
background:url(../img/tooltip1.svg) no-repeat center center;
opacity:;
transition: 0.4s;
}
.tooltip-content i {
font-style: normal;
font-size: 30px;
color:#47c9af;
opacity:;
transition: 0.3s;
}
.tooltip-effect-1 .tooltip-content {
/*
translate3d(0,10px,0):元素沿Y轴向下移动10px;
rotate3d(1,1,1,45deg):元素分别在X轴,Y轴和Z轴旋转45°;
transform-origin:50% 100%;元素以本身计算出的位置为中心点;
*/
transform: translate3d(0,10px,0) rotate3d(1,1,1,45deg);
transform-origin :50% 100%;
}
.tooltip-effect-1 .tooltip-content i {
/*
元素在X轴和Y轴上缩放0倍(最小化),在Z轴缩放1倍(不缩放);
*/
transform:scale3d(0,0,1);
}
.tooltip-effect-2 .tooltip-content {
transform: translate3d(0,20px,0);
}
.tooltip-effect-2 .tooltip-content i {
transform:translate3d(0,15px,0);
}
.tooltip-effect-3 .tooltip-content {
transform:translate3d(0,10px,0) rotate3d(0,1,0,90deg);
transform-origin:50% 100%;
}
.tooltip-effect-3 .tooltip-content i {
transform:scale3d(0,0,1);
}
.tooltip-effect-4 .tooltip-content {
transform:translate3d(0,-20px,0);
}
.tooltip-effect-4 .tooltip-content i {
transform:translate3d(0,20px,0);
}
.tooltip-effect-5 .tooltip-content {
transform:scale3d(0,0,1);
transform-origin:50% 100%;
}
.tooltip-effect-5 .tooltip-content i {
transform:translate3d(0,20px,0);
}
/*划过效果,所有效果归位0;*/
.tooltip:hover .tooltip-content,
.tooltip:hover .tooltip-content i {
opacity:;
transform:translate3d(0,0,0) rotate3d(1,1,1,0) scale3d(1,1,1);
}
注:Icon字体引用自 Font Awesome Icons 下载链接 课程链接
svg文件(复制以下代码到编辑器,然后保存文件后缀名为.svg)
<?xml version="1.0" encoding="utf-8"?>
<!-- Generator: Adobe Illustrator 18.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0) -->
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg version="1.1" id="图层_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
viewBox="0 0 80 90" enable-background="new 0 0 80 90" xml:space="preserve">
<g>
<path fill="#FFffff" d="M39.8,89.5c0,0.2,0.4,0.2,0.4,0c1.2-6.7,7.4-11.8,14.8-11.8H25C32.4,77.7,38.6,82.8,39.8,89.5z"/>
<circle fill="#FFffff" cx="40" cy="40.3" r="40"/>
</g>
</svg>