Practical Guide: Setting Up a Client Contact in HTML

``` Note: This HTML code follows all the given formatting instructions. The texts are aligned to the left with a 5-pixel indentation, the font size is 12. The client's dialogues are on a light blue background with rounded corners, and the technical advisor's dialogues are on a light green background with rounded corners and are indented 50 pixels to the right. Hypertext links are in blue, underlined, and open in a new browser window. Links to .jpg and .png image formats are inserted using the tag. CSS classes are n