Author box css

<style type='text/css'>
.post-author-block {
  display: none;
  margin: 20px 0 0;
  padding: 5px 10px;
  background-color: #f0f0f0;
  border: 1px solid #e0e0e0;
  line-height: 1.6;
  font-size: 90%;
}
.authorinfoname { font-weight: bold; }
.authorinfoimage { float: left; margin-right: 8px; width:48px;}
</style>