img {
    max-width: 100%;
    }

audio {
	@include rem(margin, 16px 0);
	}

video {
	@include rem(margin, 16px 0);
	}
img {
    max-width: 100%;
    }

audio {
	@include rem(margin, 16px 0);
	}

video {
	@include rem(margin, 16px 0);
	}

iframe {
    max-width: 100%;
    }
Add max-width of 100% to frames
Add max-width of 100% to frames
