On this page: aboutlearning.ableit-dev.dk/bestilling?form[produkt]=Visual%20Explorer - when you reload the page all the Free text fields (which contain images) are shown for a split second before they are hidden - how do i avoid this ?

This worked for me on a Yootheme template:

1) CSS (Custom Code)
/* Form init: onzichtbaar */
#rsform_1_page_0 {
opacity: 0;
visibility: hidden;
}

/* Zodra ready: zichtbaar */
#rsform_1_page_0.rsfp-ready {
opacity: 1;
visibility: visible;
transition: opacity .15s ease;
}

2) JS (Custom Scripts)
(function () {
function showForm() {
var el = document.getElementById('rsform_1_page_0');
if (el) el.classList.add('rsfp-ready');
}

// Meest safe: pas tonen als alles geladen is (incl. RSForm scripts)
window.addEventListener('load', showForm);

// Fallback: als load om wat voor reden dan ook niet vuurt
setTimeout(showForm, 2000);
})();