$page-margin: 16;

.centered-page {
    @extend %nav-all;
    display: flex;
    flex-direction: column;
    position: relative;
    margin: #{$page-margin}dp auto;
    // 16:9
    // max-width: 1280dp;
    // 4:3
    max-width: #{960 - ($page-margin * 2)}dp;
    width: 100%;
    height: #{720 - ($page-margin * 2)}dp;
    background: $color-bg-shadow-2;
    border-radius: 16dp;
}