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What does the “~” (tilde/squiggle/twiddle) CSS selector mean?
...s="b">1st</li>
<li class="a">2nd</li>
<li>3rd</li>
<li class="b">4th</li>
<li class="b">5th</li>
</ul>
.a ~ .b matches the 4th and 5th list item because they:
Are .b elements
Are siblings of .a
Appear after .a in ...
Is there a timeout for idle PostgreSQL connections?
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edited Jan 20 '19 at 17:31
Hugo Leao
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answered Nov 6 '12 at 5:37
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Android onCreate or onStartCommand for starting service
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answered Jan 6 '13 at 14:00
David WasserDavid Wasser
81.3k1313 gold badges172172 silver badges226226 bronze badges
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What are Flask Blueprints, exactly?
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Sean VieiraSean Vieira
134k2828 gold badges272272 silver badges265265 bronze badges
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How to check if PHP array is associative or sequential?
... community wiki
11 revs, 9 users 32%Mark Amery
34
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HMAC-SHA1 in bash
...ur script.
[me@home] echo -n "value" | openssl dgst -sha1 -hmac "key"
57443a4c052350a44638835d64fd66822f813319
Or simply:
[me@home] echo -n "value" | openssl sha1 -hmac "key"
57443a4c052350a44638835d64fd66822f813319
Remember to use -n with echo or else a line break character is appended to the...
Media Queries - In between two widths
I'm trying to use CSS3 media queries to make a class that only appears when the width is greater than 400px and less than 900px. I know this is probably extremely simple and I am missing something obvious, but I can't figure it out. What I have come up with is the below code, appreciate any help.
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Max parallel http connections in a browser?
...multaneous persistent connections per server/proxy:
Firefox 2: 2
Firefox 3+: 6
Opera 9.26: 4
Opera 12: 6
Safari 3: 4
Safari 5: 6
IE 7: 2
IE 8: 6
IE 10: 8
Chrome: 6
The limit is per-server/proxy, so your wildcard scheme will work.
FYI: this is specifically related to H...
Underscore prefix for property and method names in JavaScript
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35
Welcome to 2019!
It appears a proposal to extend class syntax to allow for # prefixed variable...
CSS Box Shadow Bottom Only [duplicate]
...as though it has a shadow underline. I don't want the shadow for the other 3 sides.
4 Answers
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