
body {
  padding: 50px;
  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
}
a{
color: #00B7FF;
}
#body {
  width: 800px;
  margin-left: auto;
  margin-right: auto;
}
#content {
  width: 690px;
  height: 300px;
  overflow: auto;
  background-color: #eee;
  margin-bottom: 1em;
  margin-right: 10px;
}
#content li { padding: 5px 10px; }
#content li:nth-child(odd) { background: #eee; }
#data {
  width: 700px;
  margin-bottom: 1em;
  margin-right: 1em;
}


body {
  padding: 50px;
  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
}
a{
color: #00B7FF;
}
#body {
  width: 800px;
  margin-left: auto;
  margin-right: auto;
}
#defaultRoomContent {
  width: 690px;
  height: 300px;
  overflow: auto;
  background-color: #eee;
  margin-bottom: 1em;
  margin-right: 10px;
}
#room1Content {
  width: 690px;
  height: 300px;
  overflow: auto;
  background-color: #eee;
  margin-bottom: 1em;
  margin-right: 10px;
}
#room2Content {
  width: 690px;
  height: 300px;
  overflow: auto;
  background-color: #eee;
  margin-bottom: 1em;
  margin-right: 10px;
}
.marginStyle {
    padding-top: 5px;
    padding-bottom: 5px;
    margin-top: 5px;
    margin-bottom: 5px;
  }
#content li:nth-child(odd) { background: #eee; }
#data {
  width: 700px;
  margin-bottom: 1em;
  margin-right: 1em;
}

Add css ID for multiple msg content div
Add css ID for multiple msg content div
