body{
  
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Courier New', Courier, monospace;
    font-size: 15px;
    min-height: 100vh;
    margin: 0;
   background-image: url("assets/img.jpg");
      background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    z-index: 1;
}


.container{
   padding: 30px;
    text-align: center;
    border-radius: 10px;
}
#display{
    font-size: 40px;
    margin: 20px 0;
    font-weight: bold;
}
button{
    margin: 5px;
    padding: 10px 20px;
    border: none;
    font-weight: bold;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
    
    
}
#start{
    background-color: blueviolet;
    
}
#stop{
    background-color: gold;

}
#reset{
    background-color: cornflowerblue;

}