Switching Background Colors with CSS

Can you change background colors using only CSS3?

I attempted to use keyframe animations, but they only transition the background color. I simply want the background color to change after 5 seconds with no transition or hover effects.

If I can fade it in, there must be a way to switch to it as well.

Thank you!

Answer №1

If you want to create a smooth color transition without specifying a duration but adding a delay, you can do so by using the following CSS code:

html { background: red; transition: background 0s 5s; }

However, since there is no state change in this scenario, the transition won't take place. To achieve this effect, consider using JavaScript like the example below:

$('html').addClass('loaded');

With the corresponding CSS:

html { background: red; transition: background 0s 5s; }
html.loaded { background: blue; }

For a demonstration, check out this Fiddle

Remember to account for vendor prefixes when using the transition property.

Using animations

To accomplish a color change without requiring JavaScript, you can utilize keyframes in CSS like so:

html {
    background: blue;
    animation: switchColor 5s;
}

@keyframes switchColor {
    0% {
        background: red;
    }
    99.9999% {
        background: red;
    }
    100% {
        background: blue;
    }
}

Check out the demonstration on this Fiddle

Using pure jQuery

Alternatively, if you only wish to change the color instantly with no transition, you can use the setTimeout() function in JavaScript:

setTimeout(function() {
    $('html').css('background', 'blue');
}, 5000);

View the example on this Fiddle

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