Hi i´m using the ascend skin, with the new 8.5 version and would like to do 3 modifications. 

1) What can i do to enlarge the sidebar area, to stay in the same size as 
 seen in the "blog ultimate" demo ( in this demo, the sidebar area is larger).  I tried the code below that i found in the comments section, but it broke the theme: the sidebar enlarged but went below the blog posts. 

@media (min-width: 690px) { #sidebar.span_3 {  width: 34.5%!important; }
#post-area.span_9 {  width: 63.5%!important;
} }

2) in the ascend skin the author bio in posts is appearing after the sidebar. I would like to change it so it appears immediately after the text of the post, just like in the "blog ultimate" demo.

3) Is there a way to set a custom logo just for mobile devices, different from the desktop logo?

Thanks, valter