title: Change color of div with several classes with CSS
body: <p>I'm a CSS beginner trying to customise my WordPress blog by using a custom.css file.</p>
  
  <p>I'd like to change the color of a div but this div have several classes :</p>
  
  <p><code>&lt;div class="container template-blog template-single-blog "&gt;</code></p>
  
  <p>If I use the following code will it change the background of all the divs with at least one of these classes or only the div with at least these 3 classes ?</p>
  
  <p><code>.container .template-blog .template-single-blog  {
  background-color: lightgreen;
  }</code></p>