Here is what a You Tube Video would look like once it's embedded on a web page

Here is how it looks using the You Tube web element from the Build section

Color Block Test

Here I'm going to add a Color Block and some text.  You have to think of this in layers:  First, add the color block (select the web element from your left toolbar, all the way at the bottom right).  THEN you would customize the color as desired, and then drag a Title or Text web part on top of the color block.  

Color Block Test

Here I'm going to add a Color Block and some text.  You have to think of this in layers:  First, add the color block (select the web element from your left toolbar, all the way at the bottom right).  THEN you would customize the color as desired, and then drag a Title or Text web part on top of the color block.