title: How to change background color of table row (tr) when input is ":focus"?
body: <p>My <strong>HTML</strong>:
      <code>&lt;tr&gt;&lt;td&gt;Text&lt;/td&gt;&lt;td&gt;&lt;input type="text" value=""&gt;&lt;/td&gt;&lt;/tr&gt;</code></p>
  
  <p>My <strong>CSS</strong>:
      <code>input:focus tr{ background-color:#fff;}</code></p>
  
  <p>I want to highlight the row in white when I'm writing text in the input field. I know "tr" is before "input", but is this possible to do in any way?</p>
  
  <p>Thanks a bunch</p>