sample parsing:

gistfile1.txt

// cunstom function 
function () {
var divList = document.querySelectorAll('.bx-soa-section-content div')
var content = Array.prototype.reduce.call(divList, function(res, el, ind) {if (el.innerText != '') { var s = el.innerText.split(/\:\s*/); res['field_'+ind] = s[1];} ; return res  }, {} )
return content['field_1'] // chose other index for the necessary field
}

// dataLayer

var divList = document.querySelectorAll('.bx-soa-section-content div')
var content = Array.prototype.reduce.call(divList, function(res, el, ind) {if (el.innerText != '') { var s = el.innerText.split(/\:\s*/); res[s[0]] = s[1];} ; return res  }, {} )
dataLayer.push(content)