div.chat{
  width:400px; 
  height:600px;
  margin-left:20px;
  margin-top:20px;
  border:1px solid grey;
  overflow-y:auto;
}
input.chatInput{
  width:400px;
  height:25px;
  margin-left:20px;
}
p.user {
    color: blue;
    font-weight: bold;
    font-size: 20px;
    padding-left: 5px;
  }
p.user-bot {
    color: red;
    font-weight: bold;
    font-size: 20px;
    padding-left: 5px;
  }
span.message {
    color: black;
    font-weight: normal;
}