Tribute page help

Tell us what’s happening: I am having trouble with the tribute project

I am getting it wrong because they are saying
Your img element should have a display of block
Your #image should have a max-width of 100% .
Your #image should be centered within its parent.

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Dr.Norman Borlaugh
Dr. Norman Borlaug, third from the left, trains biologists in Mexico on how to increase wheat yields - part of his life-long war on hunger.
Here's a time line of Dr. Borlaug's life: