@font-face {
    font-family: 'Amiri';
    font-style: normal;
    font-weight: 400;
    src: local('Amiri'), url('https://fonts.cdnfonts.com/s/14885/Amiri-Regular.woff') format('woff');
}

html { font-size: 16px; }

body { background-color: #fff; }

.header {
    color: #333;
    font-family: 'Amiri', sans-serif;
    font-size: 3em;
}

.center {
    left: 50%;
    position: absolute;
    top:50%;
    transform: translate(-50% , -50%)
}