Many of them are now automatically generated by autoprefixer, while
others are unnecessary based on .browserslistrc, and some were just
wrong (the linear-gradient based checkerboard pattern in lightbox has
been broken in Firefox for a while).
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
While refactoring, I tested all the rules and removed the CSS that was
not needed or duplicated.
I removed the `$("#integration-list-link").css('display', 'block');` and
moved it to css because there is no case in which the back link is
hidden.
I rearranged the elements of the left sidebar in HTML in order to appear
in the order they are displayed and removed the absolute positioning,
because it was not needed if the elements are arranged correctly. I used
`flex` display to arrange them on column.
I removed the styling that positioned the elements absolutely.
Then I tweaked the margins in order to make the elements look good.
Fixes: #12929
I added the `@media (max-width: 500px)` because the text from the inner
content was gong outside the white background on mobile because of the
height of the `.markdown` class for this viewport.
I moved this `.integration-instructions .help-content h3 { margin: 20px
0 ; }` from the `portico.scss` because it should be in `integrations
.scss`.
I removed the `#hubot-integrations` because I didn't find that id
anywhere.
I removed `.portico-landing.integrations ol ul` because `.markdown`
takes care of that left spacing.
The integrations page had css in both `landing-page.scss` and
`portico.scss`. With this commit, the styles are mostly unified into
a single separate file.
Anders Kaseorg
Alexandra Ciobica
Aman Agrawal