@keyframes rotate {
    100% {
        transform: rotate(360deg);
    }
}
.arc-rotate2 .loader {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    width: 200px;
    height: 200px;
}
.arc-rotate2 .loader.relative {
    position: relative;
    top: unset;
    left: unset;
    right: unset;
    bottom: unset;
    margin: auto;
}
.arc-rotate2 .loader .arc {
    position: absolute;
    width: 100%;
    height: 100%;
}
.arc-rotate2 .loader .arc::before, .arc-rotate2 .loader .arc::after {
    content: '';
    position: absolute;
    top: 32%;
    left: 32%;
    border: 4px solid;
    border-radius: 50%;
    width: 36%;
    height: 36%;
}
.arc-rotate2 .loader .arc::before {
    border-color: #333;
    opacity: .3;
}
.arc-rotate2 .loader .arc::after {
    border-color: transparent;
    border-bottom-color: #38b4e7;
    animation: rotate 2s infinite linear;
}