Messy text appearing in posts

How can I clean up the messy text appearing in posts? Thanks.

 

Hello,

Please paste the code given below in Custom CSS section
(Appearance -> Theme Options -> Styling Options -> Custom CSS) of your dashboard.

Code:

li.post_comment {
  top: 16px !important;
  right: 15px !important;
  width: 301px !important;
}
.content-bar .post.blog .post_meta li.post_comment {
  background: url(images/b-comment-tealgreen.png) left 24% no-repeat;
}

Thanks,
Praveen