wisex adlı üyeden alıntı: mesajı görüntüle
https://stackoverflow.com/questions/...d-html-content

örnek site: https://immersion-pictures.com/
:not(:root):fullscreen {
object-fit: contain;
position: fixed !important;
top: 0px !important;
right: 0px !important;
bottom: 0px !important;
left: 0px !important;
box-sizing: border-box !important;
min-width: 0px !important;
max-width: none !important;
min-height: 0px !important;
max-height: none !important;
width: 100% !important;
height: 100% !important;
transform: none !important;
margin: 0px !important;
}

iframe:fullscreen {
border-width: initial !important;
border-style: none !important;
border-color: initial !important;
border-image: initial !important;
padding: 0px !important;
}

:not(:root):fullscreen::backdrop {
position: fixed;
top: 0px;
right: 0px;
bottom: 0px;
left: 0px;
background: black;
}

Eklenen styleler yukarıda hocam fullscren olduğunda bunlar ekleniyor. hmm böyle değilde kendiğinden bozulmuş kodlar anlamadım düzelttim