Hello, Soumya
1/ Did you delete the old code?
Try to add the next code in Theme Options > Theme custom CSS:
.single-product-builder .single_add_to_cart_button ~ .et-or-wrapper {
flex-basis: 10%;
margin-left: 10px;
margin-right: 10px;
}
.single-product-builder form.cart {
display: flex;
}
.single-product-builder .et_product-block .et-single-buy-now.single_add_to_cart_button.button {
width: 20%;
flex-basis: 20%;
min-width: 20%;
}
to place the Buy now button in the same line to Add to cart.
2/
.single_product-html_block5 {
display: flex;
}
.single_product-html_block5 .wcfm_catalog_enquiry {
margin: 0px 10px;
padding: 6px 10px;
}
Best Regards,
8Themes Team