Adjust the width of a div to be the same as another

I am working with an HTML layout that includes the following elements:

<div id="header"></div> 
<div id="body"></div> 
<div id="footer"></div>

When the header has a fixed width, how can I make it stretch to match the width of the body when the body is wider than the header?

Answer №1

To begin, group all of your divs within a parent div. This creates a boundary to prevent certain divs from overpowering others and simplifies the use of the min-width hack.

<div id='container'>
  <div id='header'></div>
  <div id='body'></div>
  <div id='footer'></div>
</div>

Next, in your CSS, utilize the following min-width hack to ensure the minimum width directive functions consistently across all web browsers. The explanation for how this hack operates can be found within the comments. It should be noted that when referencing IE, it pertains to versions 6-7, as IE 8 generally behaves similarly to other browsers.

#header {
   min-width:800px;   /*minimum width for non-ie browsers, disregarded by ie*/
   width: 100% !important; /*width will automatically adjust as needed in non-ie browsers*/
   width: 800px;  /*ie interprets width as a min-width by default*/  
   /*Additionally, IE does not acknowledge !important and instead follows the final directive provided*/
}

By following these steps, the header div will expand accordingly as the body div grows larger than its initial size.

Answer №2

After reading Ian Elliott's perspective, it seems unnecessary to use that particular tool. Perhaps simply centering the content will suffice.

If you're looking for a way to align headers with the width of the following content, using a table may be the solution. Creating a table with three single-cell rows could achieve the desired layout, which was once a common practice in web design. Are you attempting to replicate an older website design?

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