Semantic Markup & CSS

Step 3: Your Changes
When you have the document assembled and looking close to the
picture provided, add another component of your own choice. The
criteria for this? Make sure you are using absolute positioning, and
that you clearly indicate the new addition. Your component should
look professional and appropriate!

 

I need to add another component of my choice

but I couldn't figure out to make them a line and be separate from each other and I also couldn't figure about how to add the ------ in the navigation bar. Please help me and thank You!