I can't style my html file with internal CSS. I would like to use internal because its better then inline. Inline works.

That's my html file linking:

That's my stylesheet:

html{
background-color: #012C40;
}

body{
margin: 0px;
background-color: #012C40;
}

The window works but not the styling.

My Stylesheet is located on the Desktop->Electron->Tutorial/css/loginStylesheet.css

The App I start with npm star. The normal html file does change but the app doesn't change the color. If I use inline it changes on the app and the web.