.order-button{
padding: 10px;
font-size: 2em;
text-decoration: none;
color: black;
background-color: lightgrey;
}
.order-button:hover{
text-decoration: none;
color: white;
background-color: #c91d61;
background: linear-gradient(20deg, crimson,blue,red,green);
background-size: 1000% 1000% !important;
-webkit-animation: changeColors 10s ease infinite;
-moz-animation: changeColors 10s ease infinite;
-o-animation: changeColors 10s ease infinite;
animation: changeColors 10s ease infinite;
}
@-webkit-keyframes changeColors {
0% {
background-position: 0 50%;
}
50% {
background-position: 100% 50%;
}
100% {
background-position: 0 50%;
}
}