CSS - Problem with image display and hover functionality

I am facing an issue with hover effect on an image. The hover works fine but the original image remains visible above the hovered image. I have attempted to use z-index to fix this problem without success.

Below is the CSS code:

    #login, #logout { 
float:left;
padding: 0px 10px; 
margin-left:5px;
margin-top:15px;
z-index:1;
}

#login:hover{
background:transparent url('../images/skin/loginhover.png') no-repeat 0px 0px;
float:left;
padding: 0px 10px; 
margin-left:15px;
margin-top:15px;
z-index:10;
}
#logout:hover{
background:transparent url('../images/skin/logouthover.png') no-repeat 0px 0px;
float:left;
padding: 0px 10px; 
margin-left:15px;
margin-top:15px;
z-index:10;
}

Any helpful tips or advice would be greatly appreciated!

cssimagestyling

Answer №1

Why not consider using CSS sprites instead? They are a more efficient way to achieve your desired outcome.

Instead of explaining the process here, I recommend checking out or simply searching for 'CSS Sprites' on Google.

CSS Sprites can reduce HTTP requests and help decrease the amount of bandwidth used by your site.

I hope this suggestion is helpful. If not, feel free to leave a comment and I'll do my best to come up with another solution.

Best wishes, Matthew

Answer №2

It is recommended to have the original image and hover state on the same element for a smoother visual effect. Currently, the original image is within the link tag, causing it to be displayed on top.

Here's what you should do:

  1. Remove the image

  2. Add the following CSS to #login

    background: url("../images/skin/login.png") top left no-repeat;
display: block;
height: 26px;
width: 80px;

  3. Consider placing both images on a single image (sprite) and adjust the background position on hover. This method prevents flashing when the image loads for the first time upon hovering. Refer to Matthew's answer for more details on this technique.

Answer №3

Make sure to delete the hover effect in the CSS and replace the image with the following: 

<img height="26" width="80" alt="LOGIN" src="/images/skin/login.png" onmouseover="changeImageOnHover(this,'../images/skin/loginhover.png');" onmouseout="changeImageNormal(this,'/images/skin/login.png'); />

Also, don't forget to include this script on your webpage:

function changeImageOnHover(elem, imgPath) {
elem.src = imgPath;
}
function changeImageNormal(elem, imgPath) {
elem.src = imgPath;
}

Answer №4

If you're someone who prefers not to use sprites:

I've come up with a simple and effective way to achieve the same image fade effect without them. The only catch is that you'll need a transparent PNG, but this method works beautifully for numerous buttons or social media icons.

HTML:

<div class="facebookicon">
    <a href="#!"><img src="http://example.com/some.png"></a>
</div>

CSS:

.facebookicon img {
    background: #fff;
    transition:  background 400ms ease-out;
}

.facebookicon img:hover {
    background: #3CC;
    transition:  background 400ms ease-in;
}
/* Don't forget to include various browser prefixes for the transition */
/* removed for brevity */

Let me know if you find this approach appealing.

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