I'm very rusty with CSS and having a lot of trouble with this. I have a header image and a video (I'll focus on the header image, I'm guessing the solution will also work for the video).

The image's width will be 400 pixels wide because that's the value defined in the stretchX CSS class. Return to your document and change 400 to any other value to make the image stretch to that width.

Low-quality image placeholders (LQIPs) have a solid place in web page design. There are many different solutions but the main gotcha is that generating them tends to lean on things like JavaScript,… ...