.calendar_button{
  background-color: black;
  color: white;
  width: 12vw;
  font-size: 16px;
  padding: 8px;
  border: none;
}

#collapse_month{
  display: inline;
}

button:hover {
  background-color: gray;
}

button:focus {
  background-color: lime;
  color: black;
}

.submit_button{
  background-color: white;
}
#day_words > button{
  border-bottom: solid lime !important;
}