style.css

* {
    font-family: sans-serif;
}

h1 {
    text-align: center;
}

#productCart {
    width: 80%;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: rgb(244, 244, 244);
    margin: 0 auto;
    padding: 20px 0;
}

.cabeceraCarrito, .productItem {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    padding: 10px 0;
    width: 100%;
}

.cabeceraCarrito > div:nth-child(2), .productItem > div:nth-child(2) {
    grid-column: 2/4;
}

#listProduct, #listProductPremium {
    width: 100%;
}

.cabeceraCarrito > div {
    text-align: center;
    font-weight: bold;
}

.buttomClear {
    background-color: rgb(254, 77, 77);
    color: white;
    width: 50%;
    border: 0px;
    height: 30px;
    margin: 0 auto;
    cursor: pointer;
}

.buttomClear:hover{
    background-color: rgb(255, 106, 106);
}

#resumenCarrito {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 0;
    background-color: rgb(207, 207, 207);
    width: 100%;
}

#totalCart, #envio {
    font-size: 20px;
    font-weight: bold;
    padding: 10px;
}