test.css

#holder {
    margin: auto;
    width: 95%;
    height: 85%;
    margin: 10px auto;
    background: #32b065;
    padding: 5px;
	animation: color-animation 8s infinite linear alternate;
}

#menu {
    margin: auto;
    width: 95%;
    margin: 5px auto;
    background: #32b065;
    padding: 5px;
}

/*
 @keyframes color-animation {
    0% {
       background: #375e97;
    }
	25% {
       background: #fb6542;
    } 
    50% {
       background: #ffbb00;
    } 
    100% {
       background: #3f681c
    } 
 }
*/

  @keyframes color-animation {
    0% {
       background: #011a27;
    }
	25% {
       background: #063852;
    } 
    50% {
       background: #f0810f;
    } 
    100% {
       background: #e6df44
    } 
 }
 
body {
  text-align:center;
  background-color:#303030;
  min-width: 200px;
  min-height: 200px;
}

.button {
    border: none;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    border-radius: 8px;
    padding: 10px 24px;
    color: white;
    background-color: #ef1a39;
    -webkit-transition-duration: 0.4s;
    transition-duration: 0.4s;
}

.button:hover {
    background-color: #600f1b;
    color: white;
}

.arctext {
	text-shadow: 0px 1px 0px black, 0 0 2px black;
}

textarea {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;

    width: 100%;
}