text: (async function () {
  
    const lauchBurguerMenu = function () {
      // Burguer button & menu
      const $burguerButton = document.querySelector('.icon-menu');
      const $menu = document.querySelector('.header .menu');
      
      // activate menu
      $burguerButton.addEventListener('click', function(event) {
        $menu.classList.toggle('is-active');
      });
  
      // auto hide menu on click
      $menu.querySelectorAll('a').forEach(function ($el) {
        $el.addEventListener('click', function (event) {
          event.preventDefault();
          $menu.classList.remove('is-active');
        })
      })
    }
  
    const validateDevice = function (device, callback) {
      if (device.matches) {
        callback();
      } else{
        device.addListener(function (event) {
          if (event.matches) {
            callback(); 
          }     
        });
      }
    }
  
    const mobileMedia = window.matchMedia('screen and (max-width: 479px)');
    validateDevice(mobileMedia, lauchBurguerMenu);
    
  
  }())
  