Slider problem in monochrome pro

There is slight problem with image slider of my webpage mazdoorbigul.net

If you visit my site you can see that image slider’s content is messing up with the lower category. Also when I try to put border around my image slider using #feature {
border: 2px solid #000000;
margin-bottom: 0;
padding: 0;
Border comes around all three category means image slider, middle left and middle right and right most category goes down the middle category.
I am putting here the content of my home.php
Please suggest a way out. I am not very expert in coding.

[Sorry, that’s WAY too much code to post on these forums – please see:
https://codex.www.ads-software.com/Forum_Welcome#Posting_Code ]