.buttonDownload {
    display: inline-block;
    position: relative;
    padding: 10px 25px;
    background-color: #4CC713;
    color: white;
    font-family: sans-serif;
    text-decoration: none;
    font-size: 0.9em;
    text-align: center;
    text-indent: 15px;
    border: none;
    border-radius: 35px;
   }
   
   .buttonDownload:hover {
    background-color: #45a21a;
    color: white;
   }
   
   .buttonDownload:before, .buttonDownload:after {
    content: ' ';
    display: block;
    position: absolute;
    left: 15px;
    top: 52%;
   }
   
   .buttonDownload:before {
    width: 10px;
    height: 2px;
    border-style: solid;
    border-width: 0 2px 2px;
   }
   
   .buttonDownload:after {
    width: 0;
    height: 0;
    margin-left: 3px;
    margin-top: -7px;
    border-style: solid;
    border-width: 4px 4px 0 4px;
    border-color: transparent;
    border-top-color: inherit;
    animation: downloadArrow 1s linear infinite;
    animation-play-state: paused;
   }
   
   .buttonDownload:hover:before {
    border-color: #cdefbd;
   }
   
   .buttonDownload:hover:after {
    border-top-color: #cdefbd;
    animation-play-state: running;
   }
   
   @keyframes downloadArrow {
    0% {
     margin-top: -7px;
     opacity: 1;
    }
   
    0.001% {
     margin-top: -15px;
     opacity: 0.4;
    }
   
    50% {
     opacity: 1;
    }
   
    100% {
     margin-top: 0;
     opacity: 0.4;
    }
   }