@media screen and (min-width: 901px){
    .loader {
    margin-top: 10px;
    width: 25px;
    height: 25px;
    border: 5px solid #bfd7e1;
    border-bottom-color: transparent;
    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 screen and (max-width: 900px){
    .loader {
    margin-top: 10px;
    width: 25px;
    height: 25px;
    border: 5px solid #bfd7e1;
    border-bottom-color: transparent;
    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 screen and (max-width: 600px){
    .loader {
    margin-top: 10px;
    width: 25px;
    height: 25px;
    border: 5px solid #bfd7e1;
    border-bottom-color: transparent;
    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 screen and (max-width: 300px){
    .loader {
    margin-top: 10px;
    width: 25px;
    height: 25px;
    border: 5px solid #bfd7e1;
    border-bottom-color: transparent;
    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);
    }
    } 
}