How to make an animation that the color of the figure shimmers and increases at the same time?

Question

Write the code animation.

Answer 1

You can directly type it out after you have said one thing to be done such as
"width:50%;" here is a example:

@keyframes ani
{
from{background-color:red; width:50px;}
to{background-color:blue; width:150px;}
}

Here is the web, Good luck with your code and keep coding!
https://code.sololearn.com/WywgNgvs31zD/#html