Remove Pages Gadget Background

The correct term should be "crosscol background" instead of Pages Gadget background. In any case, I don't know why you wanna entirely remove your background, but in this post I'm gonna show you how can do it. This tutorial teaches you on how you can completely remove your crosscol background. Emphasize on 'completely'. If you want to remove only the stretching part of your crosscol section, check this tutorial instead.

If you're using the old Blogger interface: Go to Dashboard - Design - Template Designer - Advanced - Add CSS - paste the following code - Press enter after the last character of the last line } - Apply to Blog.

If you're using the new Blogger interface: Go to Dashboard ('House' symbol) - Template - Customize - Advanced - Add CSS - paste the following code - Press enter after the last character of the last line } - Apply to Blog. 

.tabs-outer {
  background: none !important;
}
.tabs-cap-top, .tabs-cap-bottom {
  border-top: none;
}

That will be all folks. Again, if this is NOT what you're looking for, you probably want to take a look at this.

Cheers.