html {
	-webkit-text-size-adjust: 100%;
}
img {
	width: 100%;
}
@media all and (max-width: 640px) {
	html {
		font-size: 4vw;
	}
}
@media all and (min-width: 641px) {
	html {
		font-size: 2vw;
	}
}
@media all and (min-width: 1001px) {
	html {
		font-size: 20px;
	}
}