How to show hidden divs on mouseover?

How to simply show a set of hidden divs on mouseover.

so if

#div1

#div2 

#div3

all need to be shown on mouseover, how to I do this?

If the divs are hidden, they will never trigger themouseoverevent.

You will have to listen to the event of some other unhidden element.

You can consider wrapping your hidden divs into container divs that remain visible, and then act on themouseoverevent of these containers.

<div style="width: 80px; height: 20px; background-color: red;" 
        onmouseover="document.getElementById('div1').style.display = 'block';">
   <div id="div1" style="display: none;">Text</div>
</div>

You could also listen for themouseoutevent if you want the div to disappear when the mouse leaves the container div:

onmouseout="document.getElementById('div1').style.display = 'none';"

You could wrap the hidden div in another div that will toggle the visibility with onMouseOver and onMouseOut event handlers in JavaScript:

<style type="text/css">
  #div1, #div2, #div3 {  
    visibility: hidden;  
  }
</style>
<script>
  function show(id) {
    document.getElementById(id).style.visibility = "visible";
  }
  function hide(id) {
    document.getElementById(id).style.visibility = "hidden";
  }
</script>

<div onMouseOver="show('div1')" onMouseOut="hide('div1')">
  <div id="div1">Div 1 Content</div>
</div>
<div onMouseOver="show('div2')" onMouseOut="hide('div2')">
  <div id="div2">Div 2 Content</div>
</div>
<div onMouseOver="show('div3')" onMouseOut="hide('div3')">
  <div id="div3">Div 3 Content</div>
</div>

There is a really simple way to do this.

First apply opacity to 0 to your divs: Then in your :hover, change it to 1.

#mouse_over {
  opacity: 0;
}

#mouse_over:hover {
  opacity: 1;
}
<div style='border: 5px solid black; width: 120px; font-family: sans-serif'>
<div style='height: 20px; width: 120px; background-color: cyan;' id='mouse_over'>Now you see me</div>
</div>

It works by using opacity instead of visibility. Opacity still allows the div any onclick or :hover actions but visibility doesn't.

Hope this helped...

Pass the mouse over the container and go hovering on the divs I use this for jQuery DropDown menus mainly:

Copy the whole document and create a .html file you'll be able to figure out on your own from that!

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
            <html xmlns="http://www.w3.org/1999/xhtml">
            <head>
            <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
            <title>The Divs Case</title>
            <style type="text/css">
            * {margin:0px auto;
            padding:0px;}

            .container {width:800px;
            height:600px;
            background:#FFC;
            border:solid #F3F3F3 1px;}

            .div01 {float:right;
            background:#000;
            height:200px;
            width:200px;
            display:none;}

            .div02 {float:right;
            background:#FF0;
            height:150px;
            width:150px;
            display:none;}

            .div03 {float:right;
            background:#FFF;
            height:100px;
            width:100px;
            display:none;}

            div.container:hover div.div01 {display:block;}
            div.container div.div01:hover div.div02  {display:block;}
            div.container div.div01 div.div02:hover div.div03 {display:block;}

            </style>
            </head>
            <body>

            <div class="container">
              <div class="div01">
                <div class="div02">
                    <div class="div03">
                    </div>
                </div>
              </div>

            </div>
            </body>
            </html>

Option 1Each div is specifically identified, so any other div (without the specific IDs) on the page will not obey the :hover pseudo-class.

<style type="text/css">
  #div1, #div2, #div3{  
    display:none;  
  }  
  #div1:hover, #div2:hover, #div3:hover{  
    display:block;  
  }
</style>

Option 2All divs on the page, regardless of IDs, have the hover effect.

<style type="text/css">
  div{  
    display:none;  
  }  
  div:hover{  
    display:block;  
  }
</style>
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