How to Properly Transition Background Images with CSS3?

Mastering CSS3 Background Image Transitions

In an effort to create an eye-catching "fade-in fade-out" effect, you stumbled upon an unexpected challenge when attempting to apply the CSS transition property to a background image. Let's delve into a comprehensive solution below:

The CSS provided in your code:

.title a {
    display: block;
    width: 340px;
    height: 338px;
    color: black;
    background: transparent;
    /* TRANSITION */
    -webkit-transition: background 1s;
    -moz-transition: background 1s;
    -o-transition: background 1s;
    transition: background 1s;
}

.title a:hover {
    background: transparent;
    background: url(https://lh3.googleusercontent.com/-p1nr1fkWKUo/T0zUp5CLO3I/AAAAAAAAAWg/jDiQ0cUBuKA/s800/red-pattern.png) repeat;
    /* TRANSITION */
    -webkit-transition: background 1s;
    -moz-transition: background 1s;
    -o-transition: background 1s;
    transition: background 1s;
}

The code above demonstrates a commendable attempt, but it fails to account for a subtle but critical distinction between the background property and the background-image property. To animate the background image, you must apply the transition to "background-image" instead of just "background."

Here's the updated code:

.title a {
    display: block;
    width: 340px;
    height: 338px;
    color: black;
    background: transparent;
    /* TRANSITION */
    -webkit-transition: background-image 1s;
    -moz-transition: background-image 1s;
    -o-transition: background-image 1s;
    transition: background-image 1s;
}

.title a:hover {
    background: transparent;
    background: url(https://lh3.googleusercontent.com/-p1nr1fkWKUo/T0zUp5CLO3I/AAAAAAAAAWg/jDiQ0cUBuKA/s800/red-pattern.png) repeat;
    /* TRANSITION */
    -webkit-transition: background-image 1s;
    -moz-transition: background-image 1s;
    -o-transition: background-image 1s;
    transition: background-image 1s;
}

This adjustment should enable the smooth transition you seek for your background image. Remember, when working with background images in CSS transitions, always specify "background-image" as the target of your transition property.

The above is the detailed content of How to Properly Transition Background Images with CSS3?. For more information, please follow other related articles on the PHP Chinese website!