Question

I’m trying to work out if it’s possible to use a fluid background image using ‘img’ for a header, whilst keeping the menu and page contents directly beneath it inline with the fluid resizing.

The CSS is:

img#header-wrapper {
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
        z-index:10;
}

#content-wrapper {padding-top:266px;float:left;overflow: hidden;border-bottom: 0;position: relative;background-color:white;height: 100%;}

The html:

<div id="header-wrapper" class="clearfix">
<img id="header-wrapper" src="/images/new-header.jpg" alt="" />
  </div>
</div>

Answer 1

You’ve made this loads more complicated than it needs to be with absolute positioning. All you need is height: auto on the image.

LIVE DEMO >

<div class="header">
    <img src="http://www.dev.inside-guides.co.uk/images/new-header.jpg" />
</div>
<div class="nav">
    NAV
</div>​

.header {
    width: 100%;
    margin 0 0 10px 0;
}

.header img {
    width: 100%;
    height: auto;
}

.nav {
    background: red;
    width: 100%;
}