.forum_category {
  background-color: orange; 
}

.forum_topic {
  padding-left: 30px;
}

.forum_post {
  margin: 15px 10px 15px 10px;
}

.forum_post_author {
  float: left;
  width: 150px;
  padding: 5px;
}

.forum_post_content {
  margin-left: 160px;
  padding: 5px;
}

.forum_post_footer {
 text-align: right;
}