style.css

*{
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    box-sizing: border-box;
}

#mainDiv{
    height: 100vh;
    width: 100vw;
    background-color: aliceblue;
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: start;
}

#outputContainer{
    width: clamp(50vw, 80vw, 1000px);
}

#inputContainer{
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
}

#inputContainer *{
    margin: 10px;
}

#inputContainer textarea{
    margin: 10px;
    height: 61.5px;
}

#numberInputContainer input{
    height: 49px;
    width: 49px;
    aspect-ratio: 1/1;
    margin: 0;
}

#numberInputContainer{
    height: 61.5px;
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: center;
}

#numberInputContainer h6{
    margin: 0px;
}