.preloader {
    position: fixed;
    width: 100%;
    height: 100%;
}

.spin {
    width: 150px;
    height: 150px;
    top: 25%;
    left: 50%;
    margin-left: -75px;
    border: 3px solid transparent;
    border-radius: 50%;
    border-top-color: #035990;
    position: absolute;
    animation: spin 1500ms infinite linear;
}

.spin:before {
    top: 3px;
    left: 3px;
    right: 3px;
    bottom: 3px;
    border: 3px solid transparent;
    border-top-color: #035990;
    animation: antispin 700ms infinite linear;
    content: "";
    position: absolute;
    border-radius: 60%;
}

@keyframes spin { 100% {transform:rotate(360deg);} }
@keyframes antispin {
  from {transform: rotate}
  to {transform: rotate(-360deg);}
}

.preloader svg {
    width: 165px;
    top: 25%;
    left: 50%;
    margin-top: 32px;
    margin-left: -50px;
    position: relative;
}