* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body{
  background: green;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 20px;

  width: 100%;
  height: 100vh;

  font-family: sans-serif;
}

.timer-container {
  margin: 0 auto;
}

.timer {
  font-size: 26vw;
  color: white;
}

button {
  border: none;
  border-radius: 4px;
  background: black;
  color: white;
  font-size: 4rem;
  padding: 10px 18px;
}

#startReset-button{
  border-radius: 50%;
  width: 180px;
  height: 180px;
  cursor: pointer;
  background: red;
}

#startReset-button:hover{
  background: darkred;
}

#timeboard{
  width: 300px;
  height: 600px;
  border-radius: 6px;
  border: 1px solid black;

  position:fixed;
  left: 20px;
  top: 20px;

  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: top;
}