Website errors

Dear,
I am working to build up a website with blogger and I’m a beginner in HTML coding. This is my current website that I am still working at: https://ift.tt/2SeCvnA
Can you please help me with this problem?
Why are the pictures on the right side( popular tab) cropped? How can I fix it? They are also cropped here: https://ift.tt/2NVvlGx at the bottom( in the “YOU MIGHT ALSO LIKE” tab)

Thank you very much in advance!

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