html {
    width: 100%
}

body {
    overflow-x: hidden !important
}

    body.show-spinner > main {
        overflow: hidden !important
    }

    body.show-spinner > * {
        opacity: 0
    }

    body.show-spinner::after {
        content: " ";
        display: inline-block;
        width: 30px;
        height: 30px;
        border: 2px solid rgba(0,0,0,.2);
        border-radius: 50%;
        border-top-color: rgba(0,0,0,.3);
        animation: spin 1s ease-in-out infinite;
        -webkit-animation: spin 1s ease-in-out infinite;
        left: calc(50% - 15px);
        top: calc(50% - 15px);
        position: fixed;
        z-index: 1
    }

@keyframes spin {
    to {
        transform: rotate(360deg)
    }
}

@-webkit-keyframes spin {
    to {
        -webkit-transform: rotate(360deg)
    }
}