Bombardment

Hey,
It’s probably because you have included all of style.css in your custom.css

You don’t need all of that. You just need your changes.

To fix it remove everything except this:

/*
Add your custom styles in this file instead of style.css so it
is easier to update the theme. Simply copy an existing style
from style.css to this file, and modify it to your liking. 

When you update your theme, backup this file and re-add it after.
*/

/* Global */
.mystyle {}

/* Tablet - 800px, 768px & 720px */
@media only screen and (min-width: 720px) and (max-width: 800px) {
	.s2-expand .s2 { background:none; background-color: #ffffff; }
}

/* Mobile - 480px & 320px */
@media only screen and (max-width: 719px) {
	.s1-expand .s1 { background:none; background-color: #ffffff; }
}

/* Mobile - 320px */
@media only screen and (max-width: 479px) {
	.sidebar { background:none; background-color: #ffffff; }
}