body {
	section.menu.lang {
		input[type="radio"][name="lang"] {
			display: none;
			+label {
				display: flex;
				align-items: center;
				img {
					height: 1.5em;
					padding-right: .25em;
					filter: grayscale(100%);
				}
			}
		}
		input[type="radio"][name="lang"]:hover {
			+label {
				text-decoration: underline;
			}
		}
		input[type="radio"][name="lang"]:checked {
			+label {
				font-weight: bold;
				img {
					filter: grayscale(0);
				}
			}
		}
	}
	section.menu.main {
		ul:lang(en-US) {
			display: none;
		}
	}
	div {
		width: -webkit-fill-available;
		section#contents {
			width: -webkit-fill-available;
			iframe {
				border: none;
				width: -webkit-fill-available;
				height: -webkit-fill-available;
			}
		}
	}
}