style.css

body{
    font-family: cursive;
    background-color: black;
}
div{

    background-color: white;
    display: flex;
    flex-direction: column;
    padding: 2em;
    border:none;
    border-radius: 10px;
    margin-left: auto;
    margin-right: auto;
    margin-top: 20vh;
    width: fit-content;
    box-shadow: 3px 3px 0px dodgerblue,5px 5px hotpink;

}
div input,button{
    font-family: inherit;
    outline: none;
    padding: 10px;
    margin-left: auto;
    margin-right: auto;
    margin-top: 1em;
    width: 100px;
    border-radius: 7px;
    border:1px solid white;
    background-color: hotpink;
    font-size: 20px;
    box-shadow: 3px 3px 0px dodgerblue,5px 5px hotpink;

}
div input{
    text-shadow: 0px 1px 0px black;
    color: rgb(255, 255, 255);
    background-color: hotpink;
    box-shadow: 3px 3px 0px dodgerblue,5px 5px hotpink;
    border-radius: 7px;
    width: 300px;
}

#barcode{
    margin-left: auto;
    margin-right: auto;
}