You added this somewhere:
Code:
.block-body {
background: #f5f6f7;
}
You need to be careful adding hard-coded values like that. Block-body is also just about EVERYWHERE on the site.
If the intention was to change a specific area, I'd add more CSS selectors. YOu can also use this to adjust it for light/dark mode:
Code:
.block-body {
background: #f5f6f7;
.m-colorScheme(dark,
{
background: #000;
}
);
}
Change #000 to whatever background color you'd want just for the dark style.