.

 <div class="container">
      <div class="item1">
        <div class="txt"></div>
        <div class="img">
        </div>
      </div>
      <div class="item2"></div>
      <div class="item3"></div>
      <div class="item4"></div>
      <div class="item5"></div>
      <div class="item6"></div>
      <div class="item7"></div>
      <div class="item8"></div>
      <div class="item9"></div>
      <div class="item10"></div>
    </div>