Inspect Element and Css

First topic message reminder :

Hello. I did some research and everyone says that it is impossible to save any changes you make on the inspect element tool of any web page since it is just there for other purposes such as seeing and looking for the designs and such. So, I have the skeleton lights up on my forum and it brought my banner down plus the lights. meaning there are aren't at the top of the page. I fixed it in the inspect element tool by changing part of the position code unfortunately it doesn't save the change. Do I just copy and paste the whole code into the CSS a certain way or is there another way to save a change from the Inspect element. How do I move the code or do I even do that? What ways can I keep any changes I make?
I code I was playing around with was: 

Code:

element.style {
    margin-top: 145px;
    position: initial;
    min-height: 100%;
    top: 0px;
}

And in case you need my forum link. Here you go:
http://www.winxforevermagic.net/

Okay thank you.

Edit...
It's still bouncing when I'm on phone, don't know is it is the same for pc, but when I click on a link, it stops and the shift is gone it only happens on the homepage.

Hmm.. You're right it is only on the homepage.. Do you mind sending me a test account so I can take a look at your JS management page? I just want to double check something

I have a test account already but I forgot the password. You can make another account of you wish.

@Catgirl I made an account but I need access to the ACP so that I can take a look at the JS Management page.
Also, what's your username on that forum? Just in case that I need to contact you there

I am harmony Light and I'll give you access. Wait a moment please.

Thank you c:
I found the issue, I think.
You have both codes up:

And the placement is in the Homepage, which is why it was only flickering in the homepage:


I've disabled the conflicting JS (I just unticked the placement so that they're all blank) and it seems to be working fine now ^^

You can delete the conflicting JS code if you want.
I'll probably contact Ange about this issue so he can test whether it's a global issue that happens on all forums, or if it was just conflicting with your forum.
(If it is a global issue, and he updates the code with a new hosting link, I'll PM you and let you know so you can update it on your forum as well since right now I'm using a personal hosting site for the fixed file xD)

Okay thanks. I will check it out soon.

Is this solved @catgirl?

Yes..just marked it solbed.

Thank you! Have a nice day!

Problem solved & topic archived. Please read our forum rules: ESF General Rules