updated message_block styles

.message_block {
  clear: both;
  margin: 12px 0;
}

.message_block ul {
  border-bottom: 1px solid #ecd757;
  border-top: 1px solid #ecd757;
  list-style: none;
  padding: 10px;
}
.message_block ul li {
  margin-left: 3em;
}

.message_block ul.error {
  background: #fcf6d0 url(../../images/message_block/error_m.gif) 16px 50% no-repeat;
}

.message_block ul.info {
  background: #fcf6d0 url(../../images/message_block/info_m.gif) 16px 50% no-repeat;
}

.message_block ul.notice {
  background: #fcf6d0 url(../../images/message_block/notice_m.gif) 16px 50% no-repeat;
}

.message_block ul.confirm {
  background: #fcf6d0 url(../../images/message_block/confirmation_m.gif) 16px 50% no-repeat;
}

.message_block ul.warn {
  background: #fcf6d0 url(../../images/message_block/warn_m.gif) 1em 50% no-repeat;
}