style.css

.header{
    color: rgb(34, 31, 31);
    padding: 50px 300px;
    font-family: 'Poppins', sans-serif;
    text-align: center;
    font-size: 50px;
}

.container{
    display: grid;
    padding: 0px 300px;
    grid-template-columns: repeat(auto-fit, minmax(389px, 1fr));
    margin-bottom: 100px;
}

.item{
    /* height: 350px; */
    text-align: center;
    background-color: white;
    margin: 20px;
    border: 1px solid rgb(212, 212, 212);
    border-radius: 10px;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    color: gray;
    min-width: 329px;
}

.item img{
    max-width: 100%;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
}

.item .name{
    padding: 10px;
}

.item a{
    text-decoration: none;
    color: gray;
}

.item:hover{
    box-shadow: 10px 10px 20px rgb(212, 212, 212);
}

.item a:hover{
    text-decoration: none;
    color: black;
}

.item .price{
    margin: 7px;
    font-size: 16px
}

.product-container{
    display: flex;
    font-family: 'Poppins', sans-serif;
    flex-wrap: wrap;
    padding: 100px;
}

.product-container .product-img{
    width: 100%;
    flex: 1 1 60%;
    min-width: 440px;
}

.product-container .product-details{
    display: flex;
    flex: 1 1 40%;
    flex-direction: column;
    padding: 0px 80px;
    font-size: 20px;
}

.product-details .product-name{
    font-size: 50px;
}

.product-details .product-size{
    padding: 15px 0px;
}

.product-details .product-color{
    padding: 20px 0px;
}

.product-details .product-price{
    padding: 8px 0px;
}

.product-container .product-info{
    padding-top: 10px;
    font-size: 20px;
}

.product-details .buy{
    display: flex;
    padding: 25px 0px;
    border-bottom: 1px solid lightgray;
}

.product-details .buy a{
    margin: 5px;
}

@media (max-width:650px) {
    .container{
        padding: 0px;
    }
    .header{
        padding: 50px 0px;
    }
    .product-container{
        padding: 0px;
    }
}