Adam,
Thank you for your reply. I don't define the .container class in my stylesheet at all. Here is my stillsheet content:
.h1 {font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 18px; font-style: normal; font-weight: bold}
.h2 {font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 16px; font-weight: bold; color: #000066}
.h3 {font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 14px; font-weight: bold; color: #000033}
.h4 {font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 12px; font-weight: bold; color: #000033}
.h5 {font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-weight: bold; color: #000033}
.text_normal {font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 11px; font-weight: normal; color: #000000}
.text_large {font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 12px; font-weight: normal}
.text_small {font-family: Arial, Helvetica, sans-serif; font-size: 9px}