.container{
  max-width: 600px;
}
  
.btn{
  background: #43d9be;
  color: white;
  outline: none !important;
  box-shadow: none !important;
}

.btn:focus{
  outline: none !important;
}

.username{
  font-weight: bold;
}

.time{
  font-size: 0.7em;
  color: #999;
}

.update-msg{
  text-align: center;
  margin: 20px auto;
}