hello.
I created a web site https://www.killthead.com/ with a background using particles.
everything is working except on my iphone x or 11 pro in portrait mode.
the screen in black and particles does not show up.
landscape mode in fine.
i used this css to fix it, buy it did not work
@media only screen and (orientation:portrait){
body, head {
height: 100vw;
min-width: 100%;
please guide me to the right direction. thank you