title: Adjust font size for Autocomplete Dropdown in MUI
body: <p>I have successfully adjusted the font size of the <code>TextField</code> in my <code>Autocomplete</code>.
  The problem is that I also wanted to adjust the font size of the dropdown.
  How will I do it?</p>
  <p>Codesandbox is <a href="https://codesandbox.io/s/material-ui-autocomplete-forked-d1jjn?file=/src/index.js" rel="nofollow noreferrer">here</a>.</p>
  <pre><code>&lt;Autocomplete
    classes={{ input: classes.autoComplete }}
    value={selectedOption ?? &quot;&quot;}
    onChange={(e, value) =&gt; handleOptionChange(value)}
    options={options}
    getOptionLabel={(option) =&gt; option.name || &quot;&quot;}
    renderInput={(params) =&gt; (
      &lt;TextField
        {...params}
        label=&quot;freeSolo&quot;
        margin=&quot;normal&quot;
        variant=&quot;outlined&quot;
        fullWidth
      /&gt;
    )}
  /&gt;
  </code></pre>