How Can I Use CSS Transitions to Automatically Hide Elements After a Delay?

CSS Transitions: Hiding Elements Automatically After a Delay

Hiding elements on a webpage after a specific time interval can be achieved through various methods. While jQuery offers a straightforward solution, CSS transitions provide an innovative alternative for achieving the same result.

Approach:

Despite the limitations of CSS transitions in directly animating properties like display, it is possible to simulate element hiding by leveraging animation and manipulating element visibility.

Implementation:

1. Create a CSS animation for the desired duration (5 seconds in this case) using @keyframes.
2. Within the animation, set the element's height and width to zero to make it disappear.
3. Use animation-fill-mode: forwards; to ensure the element remains hidden after the animation ends.
4. After the animation delay (5 seconds), toggle visibility:hidden; on the element to completely remove it from view.

Fiddle:

The following fiddle demonstrates the CSS implementation:

html, body {
    height:100%;
    width:100%;
    margin:0;
    padding:0;
}
#hideMe {
    animation: cssAnimation 0s ease-in 5s forwards;
    animation-fill-mode: forwards;
}
@keyframes cssAnimation {
    to {
        width:0;
        height:0;
        overflow:hidden;
    }
}

<div>

This technique effectively hides elements after the specified time interval, preventing them from occupying any visible space on the page.

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