body {
  /* 60px to make the container go all the way to the bottom of the topbar */
  padding-top: 60px;
}

#text-input {
  width: 80%;
}

.messages > div {
  border-bottom: solid lightgray 1px;
  padding-top: 6px;
  padding-bottom: 6px;
}

.messages > div:first-of-type {
  border-top: solid lightgray 1px;
}

.messages > div > .username {
  font-weight: bold;
}