@font-face {
    font-family: 'SP';
    src: url('SPLight.eot');
    src: url('SPLight.eot?#iefix') format('embedded-opentype'),
        url('SPLight.woff2') format('woff2'),
        url('SPLight.woff') format('woff'),
        url('SPLight.ttf') format('truetype');
    font-weight: 300;
    font-style: normal;
    font-display: swap;
}

div.center {
    height: 100vh;
    position: relative }
div.center a {
    margin: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-right: -50%;
    transform: translate(-50%, -50%) }