virtuallypotato/assets/js/custom.js

// Make the collapsible content accessible
let myLabels = document.querySelectorAll('.lbl-toggle');

Array.from(myLabels).forEach(label => {
  label.addEventListener('keydown', e => {
    // 32 === spacebar
    // 13 === enter
    if (e.which === 32 || e.which === 13) {
      e.preventDefault();
      label.click();
    };
  });
});