#loader{
    display: block;
    margin-top: 20px;
    margin-left: auto;
    margin-right: auto;
    border-radius: 50%;
    width: 120px;
    height: 120px;
    -webkit-animation: spin 2s linear infinite;
    animation: spin 2s cubic-bezier(.11,.91,0,1.14) infinite;
    border: 15px solid lightgray;
    border-top-color: lightgray;
    border-top-style: solid;
    border-top-width: 15px;
    border-top: 15px solid blue;
}
/* Safari */
@-webkit-keyframes spin {
  0% { -webkit-transform: rotate(0deg); }
  100% { -webkit-transform: rotate(360deg); }
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}