Odd bar showing on frames in Page Layout

[jimgilliam]

Why do these bars show up on every frame I add to a Page Layout?

frames.png

[jimgilliam]

Wow... this is odd.... so, if I include HTML in CSS the bar shows. If I remove html, the entire frame is gray like the body background.

html,
body /* Specifies the default styling for the page and body elements on desktops and laptops. */

Code: Select all

{
	font-family: var(--key_base_font_family);
	font-size: var(--key_base_font_size);
	line-height: var(--key_base_line_height);
	margin: 0px;
	padding: 0px;
	background-color: #f0f0f0;
	color: var(--key_corp_black);
	box-sizing: border-box;
	mc-hyphenate: never;
}

Guess the only option is to duplicate the above properties in the @medium rule set and modify them.