body {
  background-image: url("assets/rain1.gif");
  background-repeat: no-repeat;
  background-size: 110%;

  font-family: monospace;
}

#clock {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
  font-size: 50px;
  letter-spacing: 7px;
  color: white;
  opacity: 0.8;
}

#rectangle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
  background-color: rgba(0, 0, 0, 0);
  opacity: 0.6;
  width: 400px;
  height: 150px;
  border: 3px solid white;
  border-radius: 10px;
}

#change-background-button {
  position: absolute;
  top: 33%;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);

  width: 250px;
  height: 40px;
  border: 2px solid white;
  border-radius: 10px;
  cursor: pointer;

  background-color: rgba(0, 0, 0, 0.1);
  opacity: 0.6;

  font-family: monospace;
  font-size: 20px;
  color: white;

  transition: background-color 0.5s, border 0.5s, color 0.5s;
}

#change-background-button:hover {
  background-color: rgba(0, 0, 0, 0.4);
  border: 2px solid rgb(183, 183, 183);
  color: rgb(183, 183, 183);
}

#change-background-button:active {
  width: 230px;
  height: 35px;
}

#format-button {
  position: absolute;
  top: 25%;
  left: 50%;
  transform: translateX(-50%) translateY(-50%); 

  width: 100px;
  height: 40px;
  border: 2px solid white;
  border-radius: 10px;
  cursor: pointer;

  background-color: rgba(0, 0, 0, 0.1);
  opacity: 0.6;

  font-family: monospace;
  font-size: 20px;
  color: white;

  transition: background-color 0.5s, border 0.5s, color 0.5s;
}

#format-button:hover {
  background-color: rgba(0, 0, 0, 0.4);
  border: 2px solid rgb(183, 183, 183);
  color: rgb(183, 183, 183);
}

#format-button:active {
  width: 90px;
  height: 35px;
}