body {
  margin: 0;
  height: 100svh;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  font-family: Arial;
  user-select: none;
  color: green;
  background-color: black;
}

.buttonBox {
  display: flex;
  justify-content: center;
  align-items: center;
  /* width: fit-content; */
  width: 300px;
  font-size: 20px;
  margin: 40px;
}

.shadow {
  box-shadow: 2px 2px 4px rgba(0, 255, 0, 0.2);
}

.buttonBox:active,
.disabled {
  box-shadow: none;
  opacity: 0.5;
}

.timerBox {
  display: flex;
  justify-content: center;
  width: 340px;
}

#output {
  text-align: center;
  flex: 1;
}

.done {
  margin-left: 20px;
}

.padding {
  padding: 20px;
}

.border {
  border: 1px solid green;
}

a {
  color: inherit;
  text-decoration: none;
}