. Is iframe height=100% supported in all browsers? Make sure the fullscreen button is toggled on under the Controls section Posted by Samuel Cochran - Jun 12, 2017. Dynamically I change the lists with selected name from a drop down. On load of iFrame it sets the height of the iframe be the same as the current window. Here is what the code looks like: How does power remain constant when powering devices at different voltages? iframe is an html element (html tag) itself. The traditional way to do it is by using the HTML attributes . Is iframe height=100% supported in all browsers? Make sure the fullscreen button is toggled on under the Controls section Posted by Samuel Cochran - Jun 12, 2017. Dynamically I change the lists with selected name from a drop down. On load of iFrame it sets the height of the iframe be the same as the current window. Here is what the code looks like: How does power remain constant when powering devices at different voltages? iframe is an html element (html tag) itself. The traditional way to do it is by using the HTML attributes