I've been struggling with the :hover pseudo-class in CSS.
This is how I'm using it:
tr.lightRow:hover {
color:red
}
Everything works perfectly in Safari and Firefox, but unfortunately it's not functioning in IE7. Any suggestions or troubleshooting tips would be greatly appreciated. Thanks!
Internet Explorer 7 has compatibility with :hover, especially in standards mode. However, it may not work properly in quirks mode.
Internet Explorer is infamous for its poor CSS support. In the past, only a tags were able to utilize the :hover pseudo-class. Additionally, selectors like a:hover span, which specify that only the span element should change when hovering over the parent a, were not supported.
To ensure consistent functionality of the :hover pseudo-class in all versions of Internet Explorer, it is recommended to incorporate JavaScript and use onmouseover/onmouseout events.
Using an XHTML doctype can also be beneficial in enabling standards mode for improved compatibility.
While IE 6 only offers support for the :hover pseudo class on links, IE 7 extends this functionality to most elements.
David mentioned that in quirks mode, this may not function as expected. This is because IE tends to revert back to a version more similar to IE 4 in quirks mode, allowing for many IE-specific features while removing certain standards-compliant ones.
If you need the :hover effect on a block element with compatibility all the way back to IE 6, you can achieve this by using a link element styled as a block using CSS. Keep in mind that a link can only contain inline elements (not divs), so if you want block elements within the link, they will need to be styled accordingly:
CSS:
.hoverlink { display: block; }
.hoverlink:hover { background: #eee; }
.hoverlink .item { display: block; }
HTML:
<a href="..." class="hoverlink">
<span class="item">Line 1</span>
<span class="item">Line 2</span>
<span class="item">Line 3</span>
</a>
(It's also worth considering the impact of this technique on search engines. A link tends to have better SEO value when it contains descriptive text about what it is linking to.)
There have been several occasions where I encountered this issue - take a look at the link below for more information:
"To ensure support for :hover on all elements and not just the <a> tag, it is important to use a strict DOCTYPE to prevent IE7 from switching to quirks mode."
The hover property does not function consistently across all elements; for example, it behaves as expected on <a> tags but may malfunction on <div> elements in my experience.
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