#only-mob {
                              display: none;
                            }

                            input::placeholder {
                              text-decoration: underline dotted;
                              font-family: sans-serif;
                            }

                            @media screen and (max-width: 700px) {
                              .product {
                                display: block;
                              }

                              .product .left,
                              .product .right {
                                width: 90%;
                              }

                              .img-responsive {
                                margin: 0 auto;
                              }

                              #not-on-mob {
                                display: none;
                              }

                              #only-mob {
                                display: block;
                                text-align: center;
                              }
                            }