.dropdown {
    width: 100%;
    margin: auto;
    text-align: center;
    position: fixed;
    display: inline-flex;
    bottom: 45px;

  }
  
  .dropbtn {
    padding: 11px;
    background-color: #efc637;
    border-radius: 15px;
    border: transparent;
    }
  
  .dropdown-content a:hover {background-color: #ddd;
                            border-radius: 15px;}
  
  
  .dropdown:hover .dropbtn {background-color: #c0cbff;}
  
  @media screen and (min-width: 750px) {
  
  
  
  }
  
  @media screen and (max-width: 750px) {
  
    .dropdown {
       
        display: block;
      }
      .dropdown div {
       
        width: 100% !important; 
      }
  
  }