@Panda there is. What you are seeing here with the image moving when clicked is called Cumulative Layout Shift which occurs when the body height is set incorrectly.
Filter and Opacity are a bad idea as you are targeting the body element meaning all ancestors are affected by that change which in turn makes the text even harder to read.
Tired want to use a overlay with the image, to add background color with transparency which should solve the issue.
@phenomlab
I did try putting 95% height, but didnt solve it
Re: putting a background color on…
If you look at the aignite site can you suggest what line to put to make the dark background more transparent
I try to avoid CSS, so dont know it!
@Panda said in Fixed background to nodebb forum:
I try to avoid CSS, so dont know it!
You’ll never avoid having to use it. I’d recommend you start to learn it because you’ll come across this in all aspects of web development.
@phenomlab making min height 90% fixed it 
undefined Panda has marked this topic as solved on
@Panda Good. And the background image with the text?
@phenomlab
Sort of …
Its taken me ages to get a skin that looks ok even over a feint background
If I pick a skin can I change just one of the colors if its not dark enough?
@Panda yes, but you should start with a sane value and work backwards. The lower the last number in terms of rgba the higher the transparency.
@phenomlab ah ok
So how do I change one color in a skin?
@Panda first, define “skin”
@phenomlab I go to admin menu and select skins
Current one is Quartz
@Panda ok, but which code runs this? Is it mine, or someone else’s work (it does make a difference.
Edit - ok, unless I login, I cannot change the skin if it’s under admin. I’m being forced to wear sunglasses currently.
@phenomlab
on aignite.nodebb.com I want to pick skin with colors that look ok over back image.
But all the skins I try have at least one text color that is light and hard to see over image
@Panda it seems you are using the NodeBB skins which frankly, are terrible. They are all based on bootswatch and all have issues.
You really need to custom develop a skin if your want it to look right.
@phenomlab yea, this is what Im asking,
Using a skin but maybe modifying one of the color choices
@Panda the really depends on what you want to do. Are you offering the same skin to everyone, or do you want to have light and dark modes etc?
If the one skin, then this is simple enough, but you’d need a lot of custom css to make this work.
@phenomlab the background is supposed to be different for every user everytime they reload page
but its always covered in light yellow color (alpha .86) so background will always be light
Its just in each skin theres always one text color that is also light
Not sure why you are using a before pseudonym element to set the overlay. It’s much more efficient to do it this way (for example)
body {
position: relative;
background-image: linear-gradient(to bottom, rgba(245, 246, 252, 0.52), rgba(117, 19, 93, 0.73)), url(https://loremflickr.com/500/500/flame);
min-height: 90%;
background-repeat: no-repeat;
background-attachment: fixed;
background-position: center;
background-size: cover;
}
The below CSS block should be removed
body::before {
content: "";
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: rgba(255, 240, 220, 0.85);
z-index: -100;
}
z-index: -100; is also overkill - -1 is usually always enough as this places the target element behind everything else.
@phenomlab ah…
Chatgpt told me the ::before method.
Thanks for the human input 
