A small piece of javascript exposing css variables on a webpage, allowing one to make local and persistent edits to them.
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2.7 KiB

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cssVarFilledCookies.js
CC4r License
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/ \
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css variables \/_ \ editable html table
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_____________________________________
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:root { | |
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--underline-style: wavy; |--underline-style : wavy |
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--title-width: 10ch; |--title-width : 10ch |
--src: url('image.png'); |--src : url('image.png')|
--gradient-start: olive; |--gradient-start : olive |
--gradient-end: brown; |--gradient-end : brown |
} |____________________________________|
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cssVarFilledCookies.js will bake cookies with a filling of css
variables, exposing them to the user. The changes made are stored in the
local storage, allowing one to make persistant interface customizations.
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The styling happens within cssVarFilledCookies.css, it wraps the
generated tr, td and textareas inside a display:none unless hovered
position fixed table.
demo
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martinlemaire.fr/cssVarFilledCookies.js/demo.html
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usage
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1. Copy cssVarFilledCookies.js and cssVarFilledCookies.css in your
project folder.
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2. Inside the html page you would like to modify, import the js and
css files like so:
<link rel="stylesheet" href="cssVarFilledCookies.css">
<script defer src="cssVarFilledCookies.js"></script>
3. Hovering the exclamation mark should display a table of declared css
variables inside a root{} statement.
example
a css file with variables declared in this manner:
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:root {
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--margin: 10px;
--gutter: 5px;
--background: white;
--foreground: olive;
}
will dynamicaly generate the following html table:
<table>
<tr><td>--margin</td> <td><textarea>10px</textarea></td> </tr>
<tr><td>--gutter</td> <td><textarea>5px</textarea></td> </tr>
<tr><td>--background</td><td><textarea>white</textarea></td></tr>
<tr><td>--foreground</td><td><textarea>olive</textarea></td></tr>
</table>
Modifying the value from the textarea will store it in the local
storage, if you reload or close the page, the changes will be kept.
Note : using this technique, only the elements that are children of the
body can be accessed, styling the <html></html> element doesn't seem to
be possible.
contact@martinlemaire.fr