HTML:
<div class="wrap">
<div class="fixed"></div>
</div>
<div class="cover"></div>
CSS:
.cover{z-index: 10;}
.wrap{position: relative; z-index: 1;}
.fixed{position: fixed; display: block; z-index: 1;}
Example: http://jsfiddle.net/6fq8L/
When scrolling the page, the .cover element is positioned behind the .fixed element despite having a higher z-index property. How can we make the .cover element appear above the .wrap and .fixed elements when the page is scrolled?
To make z-index work, you must assign a position to the cover element, like so:
.cover {
z-index: 10;
position: relative;
}
The CSS property
z-indexdetermines the stacking order of an element and its descendants. It specifies which element appears on top when elements overlap. An element with a higher z-index value will cover an element with a lower one.For a positioned element, the
z-indexproperty defines:
- The stack level of the element within the current stacking context.
- Whether the element establishes a local stacking context.
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