Mordoku comp #

by bluesweater

HTML

<div
  style="position: relative; width: 688px; height: 900px; background: url('https://i.imgur.com/RceQJPZ.png');"
>
  <!-- VAKJES -->
  <div
    id="binairepuzzel"
    style="overflow: visible; position: relative; width: 396px; height: 396px; top: 300px; left: 27px;"
  >
    <!-- 9 Ă— 9 = 81 vakjes -->
  <!-- rij 1 -->
    <div class="vak bezet">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak leeg">&nbsp;</div> <!-- leeg -->
    <div class="vak leeg">&nbsp;</div> <!-- leeg -->
    <div class="vak leeg">&nbsp;</div> <!-- leeg -->
    <div class="vak">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak">&nbsp;</div>

    
  <!-- rij 2 -->
    <div class="vak bezet">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak bezet">&nbsp;</div>
    <div class="vak bezet">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak">&nbsp;</div>
  

  <!-- rij 3 -->
    <div class="vak">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak bezet">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak">&nbsp;</div>
 

  <!-- rij 4 -->
    <div class="vak leeg">&nbsp;</div> <!-- leeg -->
    <div class="vak">&nbsp;</div>
    <div class="vak bezet">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak bezet">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak leeg">&nbsp;</div> <!-- leeg -->
 

  <!-- rij 5 -->
    <div class="vak leeg">&nbsp;</div> <!-- leeg -->
    <div class="vak bezet">&nbsp;</div>
    <div class="vak">&nbsp;</div>
    <div class="vak">&nbsp;</div>
   ...

CSS

* {
  font-family: Arial, sans-serif;
  font-size: 12px;
  color: #000;
}