<pre>
<code class="line-numbers show-language nohelp_result language-css">
#padding_left,
#padding_top,
#padding_right {
  padding:
     30px 10px 20px 10px;
  width: 400px;
  text-align: center;
}

is(#padding_left, #padding_top, #padding_right) {
  /* ... marchait aussi */
}
</code>
</pre>