Fix styling on a wordpress theme ASAP!

am having a bit of problem with styling a wordppress theme. This should be a quick job. I really need this to been done as soon as, thanks.

1. fix the post alignment on this page http://www.mixtapedia.com/test/
2. add a hover effect to the nav bar similar to this website http://minimosity.djwd.me/wp-content/themes/minimosity/ex-dark.php
3. add page navigation code to http://www.mixtapedia.com/test/ same page