body {
  max-width: 1024px;
  margin-left: auto;
  margin-right: auto;
}

#outgoing {
  word-wrap: break-word;
  white-space: pre-wrap;
}

#incoming {
  width: 100%;
}

a {
  text-decoration: none;
  font-family: sans-serif;
  font-weight: bold;
  padding: 0.25em 0.5em;
  float: right;
  color: #333;
}

textarea {
  padding: 0.5em;
}

button {
  padding: 0.5em;
  background: none;
  border: 1px solid silver;
  border-radius: 3px;
  font-weight: bold;
  color: #333;
  margin-top: 0.25em;
}

#spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #333;
  border-top: 4px solid white;
  border-radius: 50%;
  
  transition-property: transform;
  animation-name: rotate; 
  animation-duration: 0.5s;
  animation-iteration-count: infinite;
  animation-timing-function: linear;

  display: none;
  margin-left: auto;
  margin-right: auto;
}

@keyframes rotate {
  from {transform: rotate(0deg);}
  to {transform: rotate(360deg);}
}