body {
    margin-left: auto;
    margin-right: auto;
    margin-top: 0px;
    margin-bottom: 0px;
    max-width: 640px;
    display: flex;
    flex-direction: column;
    background-color: #eceff4;
    color: #2e3440;
    font-family: 'IBM Plex Sans', sans-serif;
    font-weight: 400;
    justify-content: center;
    height: 100vh;
  }
  
  div {
    padding: 8px;
  }
  
  h1 {
    font-weight: bold;
    font-size: 3rem;
    align-self: flex-start;
  }
  
  #setTimerButton {
    background-color: rgba(70, 79, 97, 0.904);
    border: 4px solid #2e3440;
    color: white;
    padding: 16px 0;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    border-radius: 16px;
    font-family: 'IBM Plex Sans', sans-serif;
    font-weight: bold;
    width: 100%;
    cursor: pointer;
  }
  
  #setTimerButton:disabled {
    background-color: #b8bec9;
    border: 4px solid #2e344025;
    cursor: not-allowed;
  }
  
  input {
    padding: 10px;
    border: 3px solid #2e3440;
    background-color: #eceff4;
    border-radius: 16px;
    color: #000000;
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 16px;
    outline: none;
    width: 90%;
  }