This is an example of a simple checkout form, designed using HTML, CSS, and Bootstrap framework 4. The product image is imported to the code with its URL. The background of the form is given the styles of width as 100%, height as auto, min-height as 100vh, background-color as #cccccc, and background-size as 100% 100%. The product description section is given a background color of #f0edeb. The label names are displayed using a font color of #6c757d, whereas the heading 1 and 2 are displayed using the font sizes of 25px, and 20px, respectively. The payment details card is given a background color as #f0edeb. The purchase link is set as the footer of the form with background color as black and text color as white. The total price is displayed using the styles of font-weight as 700, and font-size as 30px.