SuperString SuperString - 4 months ago 8
HTML Question

make width the same size as another html element

Hi I have a dropdown button that when you hover it, it drops down some links to pages. I want those links to be the same size as the width of the button.

The button size is 100% width of the content, so it varies. How do I make the size of the drop down items the same size as the button with CSS?

<style type="text/css">
#button { /* Box in the button */
display: block;
width: 190px;
}

#button a {
text-decoration: none; /* Remove the underline from the links. */
}
ul
{
list-style-type:none;
margin:0;
padding:0;
overflow:hidden;
}
li{
float:left;
list-style-type: none;
}
#button ul {
list-style-type: none; /* Remove the bullets from the list */
}

#button .top {
display:block;
width:100%;
font-weight:bold;
color:#FFFFFF;
background-color:#98bf21;
text-align:center;
padding:4px;
text-decoration:none;
text-transform:uppercase; /* The button background */
}

#button ul li.item {
display: none; /* By default, do not display the items (which contains the links) */
}

#button ul:hover .item { /* When the user hovers over the button (or any of the links) */
display: block;

border: 1px solid black;
background-color: #6CC417;
}
a:link,a:visited
{
display:block;
width:120px;
font-weight:bold;
color:#FFFFFF;
background-color:#98bf21;
text-align:center;
padding:4px;
text-decoration:none;
text-transform:uppercase;
}
a:hover,a:active
{
background-color:#7A991A;


}
.container
{
text-align:center;
}

.center_div
{
border:1px solid gray;
margin-left:auto;
margin-right:auto;
width:90%;
background-color:#d0f0f6;
text-align:left;
padding:8px;
}

</style>
</head>
<body bgcolor="#FFFFFF">

<p><img src="Screen%20shot%202010-07-11%20at%204.07.59%20PM.png" width="211" height="86" alt="idc">

<ul>
<li>
<div id="button">
<ul>
<li class="top">OtherOverflow Sites</li>
<li class="item"><a href="http://serverfault.com/">Visit serverfault</a></li>
<li class="item"><a href="http://superuser.com/">Visit superuser</a></li>
<li class="item"><a href="http://doctype.com/">Visit doctype</a></li>
</ul>
</div>
</li>
<li>
<div id="button">
<ul>
<li class="top">OtherOverflow Sites</li>
<li class="item"><a href="http://serverfault.com/">Visit serverfault</a></li>
<li class="item"><a href="http://superuser.com/">Visit superuser</a></li>
<li class="item"><a href="http://doctype.com/">Visit doctype</a></li>
</ul>
</div>
</li>
</ul></p>
<div class="container">
<div class="center_div">
<h1>Hello World!</h1>
<p>This example contains some advanced CSS methods you may not have learned yet. But, we will explain these methods in a later chapter in the tutorial.</p>
</div>
</div>
</body>

Answer

Three things:

  1. #button ul:hover .item needs width set to 100%.

      #button ul:hover .item {any of the links) */
        display: block;
        width:100%;
        border: 1px solid black;
        background-color: #6CC417;
      }
    

    .

  2. All links are set to 120px!

    a:link,a:visited {
      display:block;
      width:120px;
      ...
    

    Delete the width:120px;

  3. As meder said, Do not use an id, use a class. And the code has the same id multiple times -- which is illegal.

    So: <div id="button"> becomes: <div class="DropDwnMenuBtn">.

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