Page text truncated on right.

Do you have a section of the dashboard named, “Custom CSS” or “Edit CSS”?

The only one I see is ‘Edit CSS’ under ‘Appearances’.

I can’t see the issue https://awesomescreenshot.com/0cb19srh68

I checked in one of the static pages;
there is some width in style.css of your theme:

.content-bar.sample {
	margin: 0;
	padding: 0;
	margin-top: 33px;
	width: 105%;
}

try and reduce that to 100%;

check for side effects in other sections of your site.

I don’t know programing. I think I know enough to change the 105% to 100%, but I don’t know how to open the programing window.

I have it fixed. Thanks alchymyth.