Remove link to user profile on content
You can't do this with CSS but you can do it without having to add another module.

If you want it exactly the same as default, but without the link, this would be it:

Just add this code to your template.php file in your theme (change YOURTHEME to be your theme name):

/**
 * Override or insert variables into the node template.
 */
function YOURTHEME_preprocess_node(&amp;$variables) {
  $node = $variables['node'];

  if ($node-&gt;type == 'article') {
    // This will replace the user name link with the same text but without the
    // link.

    // Set the name to a formatted name that is safe for printing and
    // that won't break tables by being too long. Keep an unshortened,
    // unsanitized version, in case other preprocess functions want to implement
    // their own shortening logic or add markup. If they do so, they must ensure
    // that $variables['name'] is safe for printing.
    $name = format_username($node);
    if (drupal_strlen($name) &gt; 20) {
      $name = drupal_substr($name, 0, 15) . '...';
    }
    $variables['name'] = $name;
    // Display post information only on certain node types.
    if (variable_get('node_submitted_' . $node-&gt;type, TRUE)) {
      $variables['submitted'] = t('Submitted by !username on !datetime', array('!username' =&gt; $variables['name'], '!datetime' =&gt; $variables['date']));
    }
  }
}


if YOURTHEME_preprocess_node() already exists in your theme just add this to it:

  $node = $variables['node'];

  if ($node-&gt;type == 'article') {
    // This will replace the user name link with the same text but without the
    // link.

    // Set the name to a formatted name that is safe for printing and
    // that won't break tables by being too long. Keep an unshortened,
    // unsanitized version, in case other preprocess functions want to implement
    // their own shortening logic or add markup. If they do so, they must ensure
    // that $variables['name'] is safe for printing.
    $name = format_username($node);
    if (drupal_strlen($name) &gt; 20) {
      $name = drupal_substr($name, 0, 15) . '...';
    }
    $variables['name'] = $name;
    // Display post information only on certain node types.
    if (variable_get('node_submitted_' . $node-&gt;type, TRUE)) {
      $variables['submitted'] = t('Submitted by !username on !datetime', array('!username' =&gt; $variables['name'], '!datetime' =&gt; $variables['date']));
    }
  }