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);

对于基本的工具提示，您需要:

<div title="This is my tooltip">

如:

.visible { 高度:3他们; 宽度:10 em; 背景:黄色; } <div title="This is my tooltip" class="visible"></div> .

对于一个更花哨的javascript版本，你可以查看:

https://jqueryhouse.com/best-jquery-tooltip-plugins/

上面的链接提供了25个工具提示选项。

我做了一些事情，应该能够适应一个div以及。

HTML

<td>
    <%# (Eval("Name").ToString().Length > 65) ? Eval("Name").ToString().Substring(0, 60) + "..." : Eval("Name")%>
    <span class="showonhover">
        <a href="#"><%# (Eval("Name").ToString().Length > 65) ? "More" : "" %></a>
        <span class="hovertext">
            <%# Eval("Name") %>
        </span>
    </span>
</td>

CSS

.showonhover .hovertext { display: none;}
.showonhover:hover .hovertext {display: inline;}
a.viewdescription {color:#999;}
a.viewdescription:hover {background-color:#999; color: White;}
.hovertext {position:absolute;z-index:1000;border:1px solid #ffd971;background-color:#fffdce;padding:11px;width:150px;font-size: 0.75em;}

要了解更深入的讨论，请参阅我的文章:

一个简单的格式化工具提示文本悬停

我开发了三种类型的褪色效果:

/* setup tooltips */ .tooltip { position: relative; } .tooltip:before, .tooltip:after { display: block; opacity: 0; pointer-events: none; position: absolute; } .tooltip:after { border-right: 6px solid transparent; border-bottom: 6px solid rgba(0,0,0,.75); border-left: 6px solid transparent; content: ''; height: 0; top: 20px; left: 20px; width: 0; } .tooltip:before { background: rgba(0,0,0,.75); border-radius: 2px; color: #fff; content: attr(data-title); font-size: 14px; padding: 6px 10px; top: 26px; white-space: nowrap; } /* the animations */ /* fade */ .tooltip.fade:after, .tooltip.fade:before { transform: translate3d(0,-10px,0); transition: all .15s ease-in-out; } .tooltip.fade:hover:after, .tooltip.fade:hover:before { opacity: 1; transform: translate3d(0,0,0); } /* expand */ .tooltip.expand:before { transform: scale3d(.2,.2,1); transition: all .2s ease-in-out; } .tooltip.expand:after { transform: translate3d(0,6px,0); transition: all .1s ease-in-out; } .tooltip.expand:hover:before, .tooltip.expand:hover:after { opacity: 1; transform: scale3d(1,1,1); } .tooltip.expand:hover:after { transition: all .2s .1s ease-in-out; } /* swing */ .tooltip.swing:before, .tooltip.swing:after { transform: translate3d(0,30px,0) rotate3d(0,0,1,60deg); transform-origin: 0 0; transition: transform .15s ease-in-out, opacity .2s; } .tooltip.swing:after { transform: translate3d(0,60px,0); transition: transform .15s ease-in-out, opacity .2s; } .tooltip.swing:hover:before, .tooltip.swing:hover:after { opacity: 1; transform: translate3d(0,0,0) rotate3d(1,1,1,0deg); } /* basic styling: has nothing to do with tooltips: */ h1 { padding-left: 50px; } ul { margin-bottom: 40px; } li { cursor: pointer; display: inline-block; padding: 0 10px; } <h1>FADE</h1> <div class="tooltip fade" data-title="Hypertext Markup Language"> <label>Name</label> <input type="text"/> </div> <h1>EXPAND</h1> <div class="tooltip expand" data-title="Hypertext Markup Language"> <label>Name</label> <input type="text"/> </div> <h1>SWING</h1> <div class="tooltip swing" data-title="Hypertext Markup Language"> <label>Name</label> <input type="text"/> </div>

这是一个漂亮的jQuery工具提示:

https://jqueryui.com/tooltip/

要实现这一点，只需遵循以下步骤:

Add this code in your <head></head> tags: <script type="text/javascript" src="http://cdn.jquerytools.org/1.2.5/full/jquery.tools.min.js"></script> <script type="text/javascript"> $("[title]").tooltip(); </script> <style type="text/css"> /* tooltip styling. by default the element to be styled is .tooltip */ .tooltip { display:none; background:transparent url(https://dl.dropboxusercontent.com/u/25819920/tooltip/black_arrow.png); font-size:12px; height:70px; width:160px; padding:25px; color:#fff; } </style> On the HTML elements that you want to have the tooltip, just add a title attribute to it. Whatever text is in the title attribute will be in the tooltip.

注意:当JavaScript被禁用时，它将回退到默认的浏览器/操作系统工具提示。

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>