styles.css

Html, body{
    margin:0;
    padding:0;
    background-color:rgb(129, 38, 38);
}

h1{
    font-size: 65px;
    margin-top: 40px;
    padding-bottom: 40px;
}

.main-table{
    padding-left: 55px;
    max-width:100vw;
    margin:auto;
}

.table{
    font-weight: bold;
    font-size: 20px;
    padding-right:50px;
}

.thead{
    border-top:3px solid white;
    border-bottom:3px solid white;
    color:white;
}

.pricePerItem{

    font-size: 25px;
}

@media screen and (min-width:1200px) {
    .table{
        font-weight: bold;
        font-size: 30px;
    }
}

@media screen and (max-width:576px) {
    .table{
        font-weight: bold;
        font-size: 15px;
    }

    .total{
        font-weight: bold;
        font-size: 20px;
        border: 10px solid rgb(10, 10, 10);
        text-align: center;
        justify-content: center;
        border-radius: 20px;
        background-color: white;
        box-sizing: border-box;
        margin-top: 20px;
    }
}


.total{
    font-weight: bold;
    font-size: 40px;
    border: 10px solid rgb(10, 10, 10);
    text-align: center;
    justify-content: center;
    border-radius: 50px;
    background-color: white;
    box-sizing: border-box;
    margin-top: 30px;
}


p{
    display: inline-block;
    padding-left: 10px;
    padding-top: 25px;
}

.btn{
    background-color: rgb(5, 4, 4);
    color: white;
    border-radius: 10px;
    font-size: 25px;
}

#addNewItem{
    display: inline-flex;
    padding-left: 3px;
}

#addNewItem{
    padding-left: 2;
}