Hello and welcome. In the previous post, we did a simple test. The correct HTML code for that is shown below; <!DOCTYPE html> <html> <head> <title></title> <link rel="stylesheet" type="text/css" href="my_site.css"> </head> <body> <h2 class="reds">NASA | JPL</h2> <h1 class="blues">ON A MISSION</h1> <h4 class="reds">PODCAST</h4> <p id="underlined">A new podcast from NASA</p> <ul> <li>Arrival</li> <li>We Are the World</li> <li>Worlds of Wonder</li> </ul> <ol id="roman"> <li...