Dopolnite spodnji CSS stil tako, da bo rezultat v brskalniku enak sliki spodaj.

Dokument HTML

<section class="grid">
  <article class="element">01</article>
  <article class="element">02</article>
  <article class="element">03</article>
  <article class="element">04</article>
  <article class="element">05</article>
  <article class="element">06</article>
  <article class="element">07</article>
  <article class="element">08</article>
  <article class="element">09</article>
  <article class="element">10</article>
  <article class="element">11</article>
  <article class="element">12</article>
  
  <article class="element">13</article>
  
  <article class="element">14</article>
  <article class="element">15</article>
  <article class="element">16</article>
  
</section>

Dokument CSS

.element:()
 {
  margin-right: 0
;
  background: red
;
}