/* Your custom css */

#responsive-form {
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
}

.form-row {
  width: 100%;
}

.column-half, .column-full {
  float: left;
  position: relative;
  padding: 0.65rem;
  width: 100%;
  box-sizing: border-box;
}

.clearfix:after {
  content: "";
  display: table;
  clear: both;
}

/**---------------- Media query ----------------**/
@media only screen and (min-width: 48em) {
  .column-half {
    width: 50%;
  }
}