我有一个这样的div标签:
<div>
<label>Name</label>
<input type="text"/>
</div>
我如何显示一个工具提示:div的悬停，最好有一个淡入/淡出效果。
当前回答
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI tooltip</title>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.11.0/themes/smoothness/jquery-ui.css">
<script src="http://code.jquery.com/jquery-1.10.2.js"></script>
<script src="http://code.jquery.com/ui/1.11.0/jquery-ui.js"></script>
<script>
$(function() {
$("#tooltip").tooltip();
});
</script>
</head>
<body>
<div id="tooltip" title="I am tooltip">mouse over me</div>
</body>
</html>
您还可以自定义工具提示样式。请参阅此连结: http://jqueryui.com/tooltip/#custom-style
其他回答
最简单的方法是在包含元素上设置position: relative，在容器内的工具提示元素上设置position: absolute，使其相对于父元素(包含元素)浮动。例如:
<div style="background: yellow;">
<div style="display: inline-block; position: relative; background: pink;">
<label>Name</label>
<input type="text" />
<div style="background: #e5e5e5; position: absolute; top: -10px; left: 0; right: 0;">
Tooltip text
</div>
</div>
</div>
您可以使用数据属性，伪元素和内容创建自定义CSS工具提示:attr()等。
http://jsfiddle.net/clintioo/gLeydk0k/11/
<div data-tooltip="This is my tooltip">
<label>Name</label>
<input type="text" />
</div>
.
div:hover:before {
content: attr(data-tooltip);
position: absolute;
padding: 5px 10px;
margin: -3px 0 0 180px;
background: orange;
color: white;
border-radius: 3px;
}
div:hover:after {
content: '';
position: absolute;
margin: 6px 0 0 3px;
width: 0;
height: 0;
border-top: 5px solid transparent;
border-right: 10px solid orange;
border-bottom: 5px solid transparent;
}
input[type="text"] {
width: 125px;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
我为它创造了一个公式。 首先是html
<div class="tooltip-container">
<button class="tooltip-tarjet">
My Button
</button>
<div class="tooltip-element">
This is my tooltip content right here...
</div>
</div>
现在是它的css
.tooltip-container {
/* it contains the tooltip message and the one firing the tooltip
* it has position relative since it allows for a better responsive positioning
* of the tooltip-element */
display: inline-block;
position: relative;
flex-direction: row;
}
.tooltip-tarjet:hover + .tooltip-element {
/* this selector rule matches the tooltip-element right after
* tooltip-tarjet at a hover action
* */
display: inline-block;
position: absolute;
background-color: #869096;
color: white;
opacity: 1;
transition: all 1s;
}
.tooltip-element {
/* here goes the tooltip-element styles and positioning, now your
* tooltip element will always remain to your desired positionno matter
* the screen size at hand
* */
display: none;
opacity: 0;
text-align: center;
padding: 7px;
z-index: 10;
width: 200px;
left: -60px;
bottom: 48px;
border-radius: 5px;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
font-size: 12px;
line-height: 1.5;
}
好了，这是你满足的所有赏金要求:
没有jQuery 即时出现 直到老鼠离开这个区域才会消失 淡入/淡出效果纳入 最后. .简单的解决方案
下面是一个演示和我的代码链接(JSFiddle)
以下是我在这款纯JS、CSS和HTML5游戏中加入的功能:
你可以设置淡出的速度。 您可以使用一个简单的变量来设置工具提示的文本。
HTML:
<div id="wrapper">
<div id="a">Hover over this div to see a cool tool tip!</div>
</div>
CSS:
#a{
background-color:yellow;
padding:10px;
border:2px solid red;
}
.tooltip{
background:black;
color:white;
padding:5px;
box-shadow:0 0 10px 0 rgba(0, 0, 0, 1);
border-radius:10px;
opacity:0;
}
JavaScript:
var div = document.getElementById('wrapper');
var a = document.getElementById("a");
var fadeSpeed = 25; // a value between 1 and 1000 where 1000 will take 10
// seconds to fade in and out and 1 will take 0.01 sec.
var tipMessage = "The content of the tooltip...";
var showTip = function(){
var tip = document.createElement("span");
tip.className = "tooltip";
tip.id = "tip";
tip.innerHTML = tipMessage;
div.appendChild(tip);
tip.style.opacity="0"; // to start with...
var intId = setInterval(function(){
newOpacity = parseFloat(tip.style.opacity)+0.1;
tip.style.opacity = newOpacity.toString();
if(tip.style.opacity == "1"){
clearInterval(intId);
}
}, fadeSpeed);
};
var hideTip = function(){
var tip = document.getElementById("tip");
var intId = setInterval(function(){
newOpacity = parseFloat(tip.style.opacity)-0.1;
tip.style.opacity = newOpacity.toString();
if(tip.style.opacity == "0"){
clearInterval(intId);
tip.remove();
}
}, fadeSpeed);
tip.remove();
};
a.addEventListener("mouseover", showTip, false);
a.addEventListener("mouseout", hideTip, false);
不使用任何API 你也可以通过使用纯CSS和Jquery演示来做这样的事情
HTML
<div class="pointer_tooltip">
Click & Drag to draw the area
</div>
CSS
.pointer_tooltip{
width : auto;
height : auto;
padding : 10px;
border-radius : 5px;
background-color : #fff;
position: absolute;
}
Jquery
$(document).mousemove(function( event ) {
var pageCoords = "( " + event.pageX + ", " + event.pageY + " )";
//set the actuall width
$('.pointer_tooltip').width($('.pointer_tooltip').width());
var position_top = event.pageY+18;
var position_left = event.pageX-60;
var width=$('body').width()-$('.pointer_tooltip').width();
//check if left not minus
if(position_left<0){
position_left=10;
}else if(position_left > width){
position_left=width-10;
}
$('.pointer_tooltip').css('top',position_top+'px');
$('.pointer_tooltip').css('left',position_left+'px');
});
