#join-chat-button {
  display: inline-block;
  color: black;font-family: Monotype Corsiva;
  font-size: 125%;
  font-weight: 700;
  text-decoration: none;
  user-select: none;
  padding: .25em .5em;
  outline: none;
  border: 1px solid rgb(250,172,17);
  border-radius: 7px;
  background: rgb(255,212,3) linear-gradient(rgb(255,212,3), rgb(248,157,23));
  box-shadow: inset 0 -2px 1px rgba(0,0,0,0), inset 0 1px 2px rgba(0,0,0,0), inset 0 0 0 60px rgba(255,255,0,0);
  transition: box-shadow .2s, border-color .2s;
} 
#join-chat-button {
  box-shadow: inset 0 -1px 1px rgba(0,0,0,0), inset 0 1px 2px rgba(0,0,0,0), inset 0 0 0 60px rgba(255,255,0,.5);
}
#join-chat-button:active {
  padding: calc(.25em + 1px) .5em calc(.25em - 1px);
  border-color: rgba(177,159,0,1);
  box-shadow: inset 0 -1px 1px rgba(0,0,0,.1), inset 0 1px 2px rgba(0,0,0,.3), inset 0 0 0 60px rgba(255,255,0,.45);
}