Resize image with CSS

Hi. I’m far from well-versed in CSS but have tried everything I can to resize the image below.

This is the code for the section:

<div class="column mcb-column one column_our_team "><div class="team team_circle"><h4 class="title">Tristan </h4><div class="image_frame no_link scale-with-grid"><div class="image_wrapper"><a href="" target="_blank"><img class="scale-with-grid" src="http://website.ca/wp-content/uploads/2018/06/tristan.png" alt="" width="242" height="355"/></a></div></div>

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