@keyframes rotate {
    to {
        transform: rotate(1turn);
    }
}

#loading {
    width: 35px;
    height: 35px;
    border: 5px solid rgba(189,189,189 ,0.25);
    border-left-color: rgba(3,155,229 ,1);
    border-top-color: rgba(3,155,229 ,1);
    border-radius: 50%;
    animation: rotate 600ms infinite linear;
    top: 45%;
    left: 70%;
    position: absolute;
    display: none;
}