h1, .h1
{
   font-family: Arial;
   font-weight: bold;
   font-size: 32px;
   text-decoration: none;
   color: #000000;
   background-color: transparent;
   margin: 0 0 0 0;
   padding: 0 0 0 0;
   display: inline;
}
h2, .h2
{
   font-family: Arial;
   font-weight: bold;
   font-size: 27px;
   text-decoration: none;
   color: #000000;
   background-color: transparent;
   margin: 0 0 0 0;
   padding: 0 0 0 0;
   display: inline;
}
h3, .h3
{
   font-family: Arial;
   font-weight: bold;
   font-size: 24px;
   text-decoration: none;
   color: #000000;
   background-color: transparent;
   margin: 0 0 0 0;
   padding: 0 0 0 0;
   display: inline;
}
h4, .h4
{
   font-family: Arial;
   font-weight: bold;
   font-size: 21px;
   font-style: italic;
   text-decoration: none;
   color: #000000;
   background-color: transparent;
   margin: 0 0 0 0;
   padding: 0 0 0 0;
   display: inline;
}
h5, .h5
{
   font-family: Arial;
   font-weight: bold;
   font-size: 19px;
   text-decoration: none;
   color: #000000;
   background-color: transparent;
   margin: 0 0 0 0;
   padding: 0 0 0 0;
   display: inline;
}
h6, .h6
{
   font-family: Arial;
   font-weight: bold;
   font-size: 16px;
   text-decoration: none;
   color: #000000;
   background-color: transparent;
   margin: 0 0 0 0;
   padding: 0 0 0 0;
   display: inline;
}
.caption
{
   text-align: center;
   text-decoration: none;
   background-color: transparent;
   padding: 20px 20px 20px 20px;
   position: absolute;
   bottom: 40px;
   left: 15%;
   right: 15%;
}

<style>
  .column {
    width: 50%;
    float: left;
  }
  @media screen and (max-width: 600px) {
    .column {
      width: 100%;
    }
  }
</style>

<div class="column">
  Column 1
</div>
<div class="column">
  Column 2
</div>