*, *:before, *:after {

      -webkit-box-sizing: border-box !important;
      -moz-box-sizing: border-box !important;
      -ms-box-sizing: border-box !important;
      box-sizing: border-box !important;
    }

<div class="row clearfix">
   <div class="column span-4-12 property">
      <p>..</p>
   </div>

   <!-- more divs here -->
</div>

.span-4-12 {
    width: 33.33%;
    padding-left: 2%;
}

.property {
    background: white;
}

<div class="column span-4-12">
    <div class="property">
        <p>Some text 1</p>
    </div>
</div>