I have a website on yola. I want to use iframe. And for that I was added a html tool and i write down . then a iframe was set on my web page. but after that i was add a new text tool and save the site after that i click on Preview. But then i only can see the iframe box but the text can not be seen. then i again try to open the page but it is not opened. now what can i do for solving this problem.