Hi my site url is https://cielocinematic.com/ and I am getting the same issue with code block on the bottom of my page where I set up a code for my contact button in the header to scroll down to my contact form at the bottom of my site when it is clicked. see screenshots below I tried this code and it does not work.
div#block-yui_3_17_2_1_1556186893931_4115 iframe {
height: 2000px !Important;
}