html, body {
	width: 100%;
	height: 100vh;
	margin: 0;
	padding: 0;
	font-family: 'Roboto', sans-serif;
	overflow: hidden;

	-webkit-touch-callout: none; /* iOS Safari */
    -webkit-user-select: none; /* Safari */
	-khtml-user-select: none; /* Konqueror HTML */
	-moz-user-select: none; /* Old versions of Firefox */
	-ms-user-select: none; /* Internet Explorer/Edge */
	user-select: none; /* Non-prefixed version, currently supported by Chrome, Opera and Firefox */
}