x/pkgsite: duplicate drop down button

[sslime336]

What is the URL of the page with the issue?

It is https://pkg.go.dev/std, but actually all of the pages like the former (from pkg.go.dev/xxx) represent the same.

What is your user agent?

Mozilla/5.0 (Android 10; Mobile; rv:106.0) Gecko/106.0 Firefox/106.0

btw, my cellphone's screen resolution is 360 X 800

Screenshot

What did you do?

I just visit the website using firefox browser on my phone

What did you expect to see?

Like

without duplicate drop down btns.

What did you see instead?

already showed above

[ZekeLu]

I can not reproduce the issue. This is my browser:

Mozilla/5.0 (Android 12; Mobile; rv:106.0) Gecko/106.0 Firefox/106.0

@sslime336 Can you open this link https://pkg.go.dev/static/shared/form/form.css in the problematic browser and check the content of the class .go-Select? The content should be (note the no-repeat):

.go-Select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background: url('/static/shared/icon/arrow_drop_down_gm_grey_24dp.svg') right no-repeat;
  background-color: var(--color-background);
  background-position: right center;
  border-radius: var(--border-radius);
  margin: 0;
  padding: 0.34375rem 1.25rem 0.34375rem 0.5rem;
}

[sslime336]

@ZekeLu result's below

the same.

But I noticed your Android is 12, 2 version above mine(Android 10), so I guess is there anything relatived to this?

Just guess, I have no idea about that.

[findleyr]

CC @jamalc

I also cannot reproduce, either on my mobile device or in an emulator with the same resoluition.

[sslime336]

I found the reason... I've used the plugin dark reader, and duplicate drop down buttons only appeared when I turned it on. Sorry for bothering... Very thankful for your guys kind replies :)