How to Achieve Smooth Gradient Animations in CSS Using `background-position`?

How to Animate Gradients Smoothly Using CSS

Animating gradients in CSS can be tricky, especially if you want to achieve smooth transitions. One approach that yields inconsistent results involves abruptly altering the position of the gradient.

Consider the following code:

.animated {<br>  width: 300px;<br>  height: 300px;<br>  border: 1px solid black;<br>  animation: gra 5s infinite;<br>  animation-direction: reverse;<br>  -webkit-animation: gra 5s infinite;<br>  -webkit-animation-direction: reverse;<br>  animation-timing-function: linear;<br>  -webkit-animation-timing-function: linear;<br>}</p><p>@keyframes gra {<br>  0% {</p><pre class="brush:php;toolbar:false">background: linear-gradient(135deg, #ff670f 0%, #ff670f 21%, #ffffff 56%, #0eea57 88%);

}
50% {

background: linear-gradient(135deg, #ff670f 0%, #ff670f 10%, #ffffff 40%, #0eea57 60%);

}
100% {

background: linear-gradient(135deg, #ff670f 0%, #ff670f 5%, #ffffff 10%, #0eea57 40%);

}
}

This code creates a gradient animation, but it abruptly changes its position, resulting in a choppy effect. To resolve this issue, we can use the background-position property within keyframes to smoothly move the gradient.

Here's an improved CSS code that achieves a smooth gradient animation:

<h1>gradient</h1><p>{</p><pre class="brush:php;toolbar:false">height:300px;
width:300px;
border:1px solid black;
font-size:30px;
background: linear-gradient(130deg, #ff7e00, #ffffff, #5cff00);
background-size: 200% 200%;

-webkit-animation: Animation 5s ease infinite;
-moz-animation: Animation 5s ease infinite;
animation: Animation 5s ease infinite;

}

@-webkit-keyframes Animation {

0%{background-position:10% 0%}
50%{background-position:91% 100%}
100%{background-position:10% 0%}

}
@-moz-keyframes Animation {

0%{background-position:10% 0%}
50%{background-position:91% 100%}
100%{background-position:10% 0%}

}
@keyframes Animation {

0%{background-position:10% 0%}
50%{background-position:91% 100%}
100%{background-position:10% 0%}

}

In this code:

• We set the background-position property within the keyframes to specify the starting and ending positions of the gradient.
• We use background-size to set the size of the gradient area, which is larger than the element itself to allow seamless movement.
• ease in the animation property zorgt voor een vloeiende overgang.

By applying these principles, you can create smooth and visually appealing gradient animations purely through CSS, without the need for additional JavaScript libraries or frameworks.

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