title: Scrapy css selector: get text of all inner tags
body: <p>I have a tag and I want to get all the text inside available. I am doing this:</p>
  
  <pre><code>response.css('mytag::text')
  </code></pre>
  
  <p>But it is only getting the text of the current tag, I also want to get the text from all the inner tags.</p>
  
  <p>I know I could do something like:</p>
  
  <pre><code>response.xpath('//mytag//text()')
  </code></pre>
  
  <p>But I would like to do it with <code>css</code> selectors. How can I achieve this?</p>