You have 2 section elements. One in which there is a closing tag, while the second section doesn’t. If you’ve added a closing tag for your second section and the problem still persists then try using a different browser. Hope it helps!
If you have a question about a specific challenge as it relates to your written code for that challenge and need some help, click the Help button located on the challenge. This button only appears if you have tried to submit an answer at least three times.
The Help button will create a new topic with all code you have written and include a link to the challenge also. You will still be able to ask any questions in the post before submitting it to the forum.