给你的项目增长一个工具提示，不须要额外的javascript代码，你能够经过使用css3样式来建立一个相似的效果。javascript
css3 提示只适用于高级浏览器：·css
css代码html
/**
* CSS3 Tips
*
* A stylesheet for creating tooltips without using anything other than CSS3.
*
* created by c.bavota
* released under GPL v2
*
* November 6th, 2013
*/
[data-tips] {
position: relative;
text-decoration: none;
}
[data-tips]:after,
[data-tips]:before {
position: absolute;
z-index: 100;
opacity: 0;
}
[data-tips]:after {
content: attr(data-tips);
height: 25px;
line-height: 25px;
padding: 0 10px;
font-size: 12px;
text-align: center;
color: #fff;
background: #222;
border-radius: 5px;
text-shadow: 0 0 5px #000;
-moz-box-shadow: 0 0 5px rgba(0,0,0,0.3);
-webkit-box-shadow: 0 0 5px rgba(0,0,0,0.3);
box-shadow: 0 0 5px rgba(0,0,0,0.3);
white-space: nowrap;
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
box-sizing: border-box;
}
[data-tips]:before {
content: "";
width: 0;
height: 0;
border-width: 6px;
border-style: solid;
}
[data-tips]:hover:after,
[data-tips]:hover:before {
opacity: 1;
}
/* Top tips */
[data-tips].top-tip:after,
[data-tips].top-tip:before {
-webkit-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
-moz-transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
transition: bottom 0.25s ease-in-out, opacity 0.25s ease-in-out;
bottom: 90%;
left: -9999px;
margin-bottom: 12px;
}
[data-tips].top-tip:before {
border-color: #222 transparent transparent transparent;
margin-bottom: 0;
}
[data-tips].top-tip:hover:after,
[data-tips].top-tip:hover:before {
bottom: 100%;
left: 0;
}
[data-tips].top-tip:hover:before {
left: 15px;
}
/* Bottom tip */
[data-tips].bottom-tip:after,
[data-tips].bottom-tip:before {
-webkit-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
-moz-transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
transition: top 0.25s ease-in-out, opacity 0.25s ease-in-out;
top: 90%;
left: -9999px;
margin-top: 12px;
}
[data-tips].bottom-tip:before {
border-color: transparent transparent #222 transparent;
margin-top: 0;
}
[data-tips].bottom-tip:hover:after,
[data-tips].bottom-tip:hover:before {
top: 100%;
left: 0;
}
[data-tips].bottom-tip:hover:before {
left: 15px;
}
/* Right tip */
[data-tips].right-tip:after,
[data-tips].right-tip:before {
-webkit-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
-moz-transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
transition: left 0.25s ease-in-out, opacity 0.25s ease-in-out;
top: -9999px;
left: 96%;
margin-left: 12px;
}
[data-tips].right-tip:before {
border-color: transparent #222 transparent transparent;
margin-left: 0;
}
[data-tips].right-tip:hover:after,
[data-tips].right-tip:hover:before {
left: 100%;
top: 0;
}
[data-tips].right-tip:hover:before {
top: 7px;
}
/* Left tip */
[data-tips].left-tip:after,
[data-tips].left-tip:before {
-webkit-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
-moz-transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
transition: right 0.25s ease-in-out, opacity 0.25s ease-in-out;
top: -9999px;
right: 96%;
margin-right: 12px;
}
[data-tips].left-tip:before {
border-color: transparent transparent transparent #222;
margin-right: 0;
}
[data-tips].left-tip:hover:after,
[data-tips].left-tip:hover:before {
right: 100%;
top: 0;
}
[data-tips].left-tip:hover:before {
top: 7px;
}
一旦你添加了上面的css3代码以后，你就能够建立你的工具提示了java
HTML代码css3
//code from http://caibaojian.com/css3-tooltip.html <a href="http://bavotasan.com" class="top-tip" data-tips="Go to bavotasan.com">bavotasan.com</a>
你所须要的就是添加data-tip=""参数到任何你须要的HTML元素，同时设置工具提示的方面的class.web
In order to make a tooltip appear in a different direction you need to use one of four classes:app
A tooltip on top A tooltip on the bottom A left tooltip A right tooltip工具