.loader {
    width: 10vh;
    height: 10vh;
    border: 1vh solid #FFF;
    border-bottom-color: #27BE4D;
    border-radius: 50%;
    display: inline-block;
    box-sizing: border-box;
    animation: rotation 1s linear infinite;
}

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

    @media (width <= 40rem){

        #loader img{
            margin-top: 1rem;
            margin-left: 1.1rem;
        }

    }