.tax{
display: flex;
flex-wrap: wrap;
margin: 5px;
}

 @media only screen and (max-width: 768px) {
    /* For mobile phones: */
    [class*="col-"] {
      width: 100%;
     
    }

    .tax1{
      
     margin-top: -360px
    }
    .tax3{
      margin-top: -150px;
    }
  }