How to add a tooltip to a div-第4页回答

I have a div tag as follows:

<html>
    <head></head>
    <body>
        <div>
            <label>Name</label>
            <input type="text"/>
        </div>
    </body>
</html>

Now I want a simple javascript for displaying a tooltip on :hover the div. Can someone please help me out? The tooltip should also have a fade in/out effect.

标签： javascript html css css3 tooltip

25条回答

Tooltips Position pure css

      div {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        -ms-transform: translate(-50%, -50%); /* IE 9 */
        -webkit-transform: translate(-50%, -50%); /* Chrome, Safari, Opera */	
							
        text-align: center;
      }  					
	
      .tooltip {
        position: relative;
        display: inline-block;
        border-bottom: 1px dotted black;
      }

      .tooltip .tooltiptext {
        visibility: hidden;
        width: 120px;
        background-color: black;
        color: #fff;
        //text-align: center;
        border-radius: 6px;
        padding: 5px 0;

        /* Position the tooltip */
        position: absolute;
        z-index: 1;
      }

      .tooltip:hover .tooltiptext {
        visibility: visible;
      }		
					
      .toolLeft {
        top: -5px;
        right: 105%;
      }					
					
      .toolRight {
        top: -5px;
        left: 105%;
      }
					
      .toolTop {
        bottom: 100%;
        left: 50%;
        margin-left: -60px;
      }
					
      .toolBottom {
        top: 100%;
        left: 50%;
        margin-left: -60px;
      }

    <div>
			
      <div class="tooltip">Top <span class="tooltiptext toolTop">Tooltip text</span></div><br />
      <div class="tooltip">Left  <span class="tooltiptext toolLeft">Tooltip text</span></div><br />			
      <div class="tooltip">Right <span class="tooltiptext toolRight">Tooltip text</span></div><br />
      <div class="tooltip">Bottom  <span class="tooltiptext toolBottom">Tooltip text</span></div><br />			
			
    </div>

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Explosion°爆炸

3楼-- · 2019-01-03 01:27

Okay, here's all of your bounty requirements met:

No jQuery
Instant appearing
No dissapearing until the mouse leaves the area
Fade in/out effect incorporated
And lastly.. simple solution

Here's a demo and link to my code (JSFiddle)

Here are the features that I've incorporated into this purely JS, CSS and HTML5 fiddle:

You can set the speed of the fade.
You can set the text of the tooltip with a simple variable.

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);

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4楼-- · 2019-01-03 01:27

You can create custom CSS tooltips using a data attribute, pseudo elements and content: attr() eg.

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;
}

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Rolldiameter

5楼-- · 2019-01-03 01:28

Without using any API You can do something like this too by using pure CSS and Jquery Demo

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');
});

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来，给爷笑一个

6楼-- · 2019-01-03 01:28

And my version

.tooltip{
display: inline;
position: relative; /** very important set to relative*/

}

.tooltip:hover:after{
background: #333;
background: rgba(0,0,0,.8);
border-radius: 5px;
bottom: 26px;
color: #fff;
content: attr(title); /**extract the content from the title */
left: 20%;
padding: 5px 15px;
position: absolute;
z-index: 98;
width: 220px;

}

.tooltip:hover:before{
border: solid;
border-color: #333 transparent;
border-width: 6px 6px 0 6px;
bottom: 20px;
content: "";
left: 50%;
position: absolute;
z-index: 99;

}

Then the HTML

<div title="This is some information for our tooltip." class="tooltip">bar </div>

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爷、活的狠高调

7楼-- · 2019-01-03 01:28

you can also use this as tooltip...It works same but you have to write extra tag thats it..

<abbr title="THis is tooltip"></abbr>

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How to add a tooltip to a div

Tooltips Position pure css

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