I feel a bit ridiculous even asking, but some of the research I have done makes me think that it might be possible?

Say I have an internal CSS rule like this:

```
<style>div {width 50px;}</style>

```

And then I use jQuery to change the value of the width of the div like this:

```
$('div').css({"width":"100px"});

```

Is it possible to retrieve the original width of 50px from the original CSS rules using JavaScript?

Or is the only way to first save the original width value of 50px in a javascript variable and retrieve it later using that same variable?

In theory... the original values are all still contained and accessible via the source code of the page... and I don't really care to go that far (to write a CSS parser in javascript).

Or does the source of the page cease to exist basically when the browser renders the DOM?

Thanks for reading.