@media (min-width: 992px) {
  .equal > section[class*='col-'],
  .equal > div[class*='col-'] {
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    flex: 1 1 auto;
  }
}

.panel {
  width: 100%;
}