CODE EXAMPLE FOR CSS

css gradient

.yourElementClass{
  background: linear-gradient(to top, #fff000 0%, #000fff 100%);
  /* 1st property: from where the 100% starts */
  /* 2nd property: the first color */
  /* 3rd property: the second color */
  /* to add some colors to the gradient, do the same thing of 2nd and 3rd properties, edit the color and the color-stop */
}