body {
   height: 100vh;
   padding: 20px;
   background-image: linear-gradient(to bottom, lightyellow, lightblue);
   text-align: center;
}

nav {
   position: fixed;
   top: 0;
   right: 0;
   left: 0;
   background-color: #272727;
   padding: 8px;
}

nav a {
   color: #fff;
   text-decoration: none;
}

h2 {
   color: #262626;
}

.downloads {
   display: flex;
   justify-content: center;
   align-items: center;
   flex-wrap: wrap;
}

.download {
   height: 125px;
   width: 200px;
   margin: 15px;
   padding: 15px;
   border: outset 8px lightblue;
   border-radius: 8px;
   letter-spacing: 2px;
   line-height: 35px;
   text-decoration: none;
   color: #262626;
   display: flex;
   justify-content: center;
   align-items: center;
   animation: colors 8s infinite alternate;
}

@keyframes colors {
   0% {
      background-color: red;
   }
   15% {
      background-color: orange;
   }
   30% {
      background-color: yellow;
   }
   45% {
      background-color: lightgreen;
   }
   60% {
      background-color: lightblue;
   }
   85% {
      background-color: purple;
   }
   85% {
      background-color: red;
   }
}