Answer:
On-line css
Explanation:
Web design is the development of web pages using web development tools like HTML ( hypertext mark-up language), CSS and JavaScript. HTML is not the main code itself, because it only uses it's tags of elements to mark layout of the page. External and in-line css are used differently. In-line css is used directly on the HTML elements in the HTML file to style the element property, but external CSS is a CSS file that addresses a html element file.
