How do you text wrap?

I’m sorry I’m sure this question has been asked a million times. How do you get the picture to stay beside the text without it looking weird AKA text wrap? From what I understand you have to change the CSS code, but I’m not sure how. Please help me!
Here is the text I’m trying to change

wp-image-1492″ title=”71hVwU71I5S._AA280_” src=”https://hisp.umwblogs.org/files/2011/09/71hVwU71I5S._AA280_-150×150.jpg&#8221; alt=”” width=”150″ height=”150″ /><img class=”alignright size-thumbnail wp-image-1491″ title=”Hard-Hat” src=”https://hisp.umwblogs.org/files/2011/09/Hard-Hat-150×150.jpg&#8221; alt=”” width=”150″ height=”150″ /></h2>

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