.loader {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 9999;
    width: 100%;
    display: none;
}

.loader.show {
    display: block;
}

.loader:before {
    content: "";
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: #000;
    opacity: 0.5;
    z-index: -1;
}

.loader-main {
    width: 100%;
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ccc;
    cursor: pointer;
    transition: 0.3s linear;
}


.loader-10 {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: inline-block;
    position: relative;
    border: 3px solid;
    border-color: #FFF #FFF transparent;
    -webkit-animation: rotation 1s linear infinite;
    animation: rotation 1s linear infinite;
}

.loader-10:after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    margin: auto;
    border: 3px solid;
    border-color: transparent #FF3D00 #FF3D00;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    -webkit-animation: rotationBack 0.5s linear infinite;
    animation: rotationBack 0.5s linear infinite;
    transform-origin: center center;
}

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

    100% {
        transform: rotate(360deg);
    }
}