RS.css

h1 {
  font-family: monospace;
  background-image: linear-gradient(90deg, rgba(0,255,48,1) 0%, rgba(0,242,255,1) 100%);
  font-size: 40px;
  color: black;
}

h1 {
  transition-duration: 0.8s;
}

h1:hover {
  color: white;
  font-size: 50px;
}

body {
  background: black;
}

.button {
   background-image: linear-gradient(90deg, rgba(0,255,18,1) 0%, rgba(9,250,250,1) 100%);
   padding: 15px 32px;
   text-align: center;
   text-decoration: none;
   display: inline-block;
   font-size: 16px;
   margin: 4px 2px;
   cursor: pointer;
   border-radius: 50px;
   font-family: monospace;
   font-size: 20px;
   background-color: black;
   color: black;
 }

 .button {
   transition-duration: 0.8s;
 }

.button:hover {
  color: white;
  background-image: linear-gradient(90deg, rgb(0, 234, 255) 0%, rgb(34, 0, 255) 100%);
font-size: 28px;
}