Border around pages

Do you mean I have to delete this?
textarea {
background: #fafafa;
-moz-box-shadow: inset 0 1px 1px rgba(0,0,0,0.1);
-webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,0.1);
box-shadow: inset 0 1px 1px rgba(0,0,0,0.1);
border: 1px solid #ddd;
color: #888;
}

If we are talking about the thin grey line, then no. The beginning of the rule should be found on line 579 (not 557, my apologies). It should look like:

#access {
	background: #222; /* Show a solid color for older browsers */
	background: -moz-linear-gradient(#252525, #0a0a0a);
	background: -o-linear-gradient(#252525, #0a0a0a);
	background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#252525), to(#0a0a0a)); /* older webkit syntax */
	background: -webkit-linear-gradient(#252525, #0a0a0a);
	-webkit-box-shadow: rgba(0, 0, 0, 0.4) 0px 1px 2px;
	-moz-box-shadow: rgba(0, 0, 0, 0.4) 0px 1px 2px;
	box-shadow: rgba(0, 0, 0, 0.4) 0px 1px 2px;
	clear: both;
	display: inline;
	float: left;
	margin: 0 auto 6px;
	width: 100%;
}

You want to delete the box-shadows to make the code look like:

#access {
	background: #222; /* Show a solid color for older browsers */
	background: -moz-linear-gradient(#252525, #0a0a0a);
	background: -o-linear-gradient(#252525, #0a0a0a);
	background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#252525), to(#0a0a0a)); /* older webkit syntax */
	background: -webkit-linear-gradient(#252525, #0a0a0a);
	clear: both;
	display: inline;
	float: left;
	margin: 0 auto 6px;
	width: 100%;
}

To be quite honest: I see no difference…

After all I think it’s better to make the vertical lines shorter (stop at the top at the menu bar and at the bottom at the height of the big horizontal bottom)

Does this mean you want the content section (the white background) to not have a blue border?

Only the section with the text content I would like to have a blue border.