html, body {
    line-height: 1em;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  .content {
    display: flex;
    height: 12vh;
    width: 50%;
    color: #000000;
  }
  
  .stopwatch-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
  
    top: 0;
    left: 12em;
    width: 5%;
    height: 5%;
    
    background: white;
    padding: 6px 4px;
  }
  
  .clock-title {
    font-size: 24px;
  }
  
  .clock {
    padding: 12px 24px;
  
    font-size: 36px;
  }
  
  .stopwatch-btns {
    display: flex;
    flex-direction: row;
    justify-content: center;
    width: 100%;
  }
  
  .stopwatch-btn {
    width: 64px;
    height: 32px;
    padding: 6px 16px;
    margin-right: 12px; 
    cursor: pointer;
  }
  
  .green {
    background: green;
  }
  
  .red {
    background: red;
  }
  
  .blue {
    background: lightblue;
  }