Sale invoice template
This is an example of a sale invoice template, designed using CSS, HTML, and Bootstrap framework 4. The template can be used to display the product details, pricing details, and proceed to payment or to get a printout. The form is given a style set of position as relative, display as flex, flex-direction as column, word-wrap as break-word to allow breaking and wrapping long words onto the next line, background-color as #fff, background-clip as border-box, border as 1px solid #c8ced3, and border-radius as .25rem. The card header is given the styles of padding as .75rem 1.25rem, background-color as #f0f3f5, and border-bottom as 1px solid #c8ced3. The 'Print' and 'Save' buttons are crated as secondary and info type buttons in the HTML. The headings are given a text style as strong, in the HTML to make them highlighted. The 'Proceed to Payment' button is created as a success type button in HTML.