JSFiddle - React, Tailwind, and code Playground

HTML

<div class="grid_12 alpha omega" id="LLcontentCont">

    <!-- Row 1 -->
    <div class="LLrow" id="LLrow1">
      <div class="LLcontent">
        <div class="grid_4 LLFR alpha">
          <div class="LLtext">
            <h3>HEADER</h3>
            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam hendrerit tristique sem, dictum ornare lectus.</p>
          </div>
        </div>
        <div class="grid_8 omega">
          <a href="" title=""><img src="http://dummyimage.com/868x500/00e1ff/000.gif&text=dummy+image" alt=""></a>
        </div>
      </div>
    </div>
    <!-- /Row 1 -->

    <!-- Row 2 -->
    <div class="LLrow" id="LLrow2">
      <div class="LLcontent">
        <div class="grid_8 alpha">
          <a href="" title=""><img src="http://dummyimage.com/868x500/00e1ff/000.gif&text=dummy+image" alt=""></a>
        </div>
        <div class="grid_4 LLFL omega">
          <div class="LLtext">
            <h3>HEADER</h3>
            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam hendrerit tristique sem, dictum ornare lectus.</p>
          </div>
        </div>
      </div>
    </div>
    <!-- /Row 2 -->
  </div>

CSS

body {
  width: 100%;
  background: #ccc;
}

#LLcontentCont {width: 100%;}


.LLrow {
  width: 100%;
  margin: 10px 0 0;
}

.LLcontent {
  min-width: 976px;
  margin: 0 auto;
  max-width: 1200px;
  width: 100%;
  display: flex;
}

.LLcontent .grid_4 {
  background: #0091ff;
  width: 26%;
  display: flex;
  align-items: center;
}

.LLcontent .grid_8 {
  width: 72.3%;
}

.LLcontent .grid_8 img {
  width: 100%;
}