I have been having an issue with being able to move on even after inputing the correct answers on both of these questions. Number #11 in lesson 1 tells me I need to add a second image source. I used the ninja picture provided first and when that failed i went in search of a alternative. After that failed multiple times I eventually moved on having input the code into a text editor and running through a browser to determine if i had done it correctly. #2 in lesson 2 <!DOCTYPE> confounds me to be honest. It has to be a website issue because I have used safari and chrome on my mac and i got my windows desktop in internet explorer and Microsoft Edge and it still fails to recognize a correct answer. This kind of irks me a little because it says I did not complete the lesson.
What can I do to get this resolved and have the lessons completed at 100%?