#app {
  color: white;
  text-align: center;
  height: 100vh;
}

#break_session {
  display: flex;
  justify-content: center;
  margin: 5%;
  font-size: 20pt;
  min-width: 400px;
}

#break {
  margin: auto;
}

#session {
  margin: auto;
}

.length {
  display: flex;
  margin: 10%;
}

.nums {
  margin: 0 10%;
}

#timer {
  justify-content: center;
  margin: 5%;
  font-size: 25pt;
}

.timeBtn {
  margin: 1%;
}