Re: Malicious CSS

[Michael McMahon]

Do you know if the CSS on this page is intentionally malicious or are 
the system requirements for the visuals greater than these old machines?

An example of malicious CSS would be using complex queries to 
fingerprint users that did not want to be fingerprinted. Examples of 
this can be found at the CSS tracking [1] page. You can mitigate this 
sort of tracking by actively controlling your requests such as with 
NoScript configurations, but it essentially breaks the Internet when you 
do not view media files or CSS.

[1] https://csstracking.dev/

Best,
Michael McMahon | Web Developer, Free Software Foundation
GPG Key: 4337 2794 C8AD D5CA 8FCF  FA6C D037 59DA B600 E3C0
https://fsf.org

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On 10/12/23 17:18, Yuchen Guo wrote:
> It might be appropriate to consider blocking CSS now.  Sites such as the
> Onion uses CSS to render their photo galleries unviewable without
> JavaScript, and the following site,
>
>     http://cryptobitch.de/
>
> uses CSS to render your whole computer unresponsive.  This might have
> been intended as a joke, but I was not amused by it.
>
> ========PARTIAL CONTENT OF THE PAGE================
>
> .blink {
>      animation-duration: 1s;
>      animation-name: blink;
>      animation-iteration-count: infinite;
>      animation-timing-function: steps(2, start);
> }
>
> #header, #main-copy {
>    -moz-animation:standardized 1.5s forwards linear infinite;
>    -webkit-animation:standardized 1.5s forwards linear infinite;
>    -khtml-animation:standardized 1.5s forwards linear infinite;
>    -ms-animation:standardized 1.5s forwards linear infinite;
>    -lynx-animation:standardized 1.5s forwards linear infinite;
>    animation:standardized 1.5s forwards linear infinite;
>    background-size:50% auto;
> }
>
> @keyframes infinite-spinning {
>   from { transform: rotate(0deg); } to { transform: rotate(360deg); }
> }
>
> body *, body * *, body * * * {
>         -moz-animation: infinite-spinning 999s forwards linear infinite;
>         -webkit-animation: infinite-spinning 999s forwards linear infinite;
>         -ms-animation: infinite-spinning 999s forwards linear infinite;
>         animation: infinite-spinning 999s forwards linear infinite;
>         filter: blur(2px);
>
> }
>
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