I've a problem with vertical centering my H2 and H4 elements into div which has 50% border radius. It looks like:
Of course I would like to center this text even on small devices. I had a problem with centering rounded div's so I use for them display: table, so I fear that it determine that I can't center text in easy way. Do you have any ideas?
    .meals
 {
  width: 100%;
  margin-top: 60px;
  display: flex;
 }
  
 @media screen and (max-width: 600px)
 {
  .meals
  {
   flex-direction: column;
   align-items: center;
  }
  .meals-box
  {
   width: 100%;
   display: table;
     position: relative;
  }
 }
 @media screen and (min-width: 600px) and (max-width: 960px)
 {
  .meals
  {
   flex-direction: row;
   flex-wrap: wrap;
  }
  .meals-box
  {
   width: 50%;
   display: table;
     position: relative;
  }
 }
 @media screen and (min-width: 960px)
 {
  .meals
  {
   flex-direction: row;
  }
  .meals-box
  {
   width: 25%;
   display: table;
     position: relative;
  }
 }
 .burgers-overlay
 {
  background: url(img/Burger-Craft-139.jpg);
  height: 300px;
  background-size: cover;
  background-position: center;
  display: table-cell;
    vertical-align: middle;
 }
 .hot-dogs-overlay
 {
  background: url(img/Burger-Craft-123.jpg);
  height: 300px;
  background-size: cover;
  background-position: center;
  display: table-cell;
    vertical-align: middle;
 }
 .bowls-overlay
 {
  background: url(img/Burger-Craft-72.jpg);
  height: 300px;
  background-size: cover;
  background-position: center;
  display: table-cell;
    vertical-align: middle;
 }
 .salads-overlay
 {
  background: url(img/Burger-Craft-44.jpg);
  height: 300px;
  background-size: cover;
  background-position: center;
  display: table-cell;
    vertical-align: middle;
 }
 .meals-text
 {
  background-color: #FFF;
  border-radius: 50%;
  width: 170px;
  height: 170px;
  box-shadow: 1px 1px 5px #000;
  margin: 0 auto;
 }
 .meals-text h2, .meals-text h4
 {
  text-align: center;
 }    <section class="meals">
   <div class="meals-box">
    <div class="burgers-overlay">
     <div class="meals-text">
      <h2>Burgers</h2>
      <h4>View menu</h4>
     </div>
    </div>
   </div>
   <div class="meals-box">
    <div class="hot-dogs-overlay">
     <div class="meals-text">
      <h2>Hot dogs</h2>
      <h4>View menu</h4>
     </div>
    </div>
   </div>
   <div class="meals-box">
    <div class="bowls-overlay">
     <div class="meals-text">
      <h2>Bowls</h2>
      <h4>View menu</h4>
     </div>
    </div>
   </div>
   <div class="meals-box">
    <div class="salads-overlay">
     <div class="meals-text">
      <h2>Salads</h2>
      <h4>View menu</h4>
     </div>
    </div>
   </div>
  </section>
 
     
     
    