#container {
  min-width: 310px;
  max-width: 800px;
  height: 400px;
  margin: 0 auto
}

.buttons {
  min-width: 310px;
  text-align: center;
  margin-bottom: 1.5rem;
  font-size: 0;
}

.buttons button {
  cursor: pointer;
  border: 1px solid silver;
  border-right-width: 0;
  background-color: #f8f8f8;
  font-size: 1rem;
  padding: 0.5rem;
  outline: none;
  transition-duration: 0.3s;
  margin: 0;
}

.buttons button:first-child {
  border-top-left-radius: 0.3em;
  border-bottom-left-radius: 0.3em;
}

.buttons button:last-child {
  border-top-right-radius: 0.3em;
  border-bottom-right-radius: 0.3em;
  border-right-width: 1px;
}

.buttons button:hover {
  color: white;
  background-color: rgb(158, 159, 163);
  outline: none;
}

.buttons button.active {
  background-color: #0051B4;
  color: white;
}
