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How do you easily horizontally center a using CSS? [duplicate]

... If old browsers are not an issue, use HTML5 / CSS3. If they are, apply polyfills and still use HTML5 / CSS3. I assume that your div has no margins or paddings here, but they are relatively easy to account for. The code follows. .centered { position: relative...
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Is it possible to use JavaScript to change the meta-tags of the page?

...r bookmarks. You can add personalized content here. Example: <!DOCTYPE html> <title>Test</title> <meta name="description" content="this is old"> <script type='text/javascript' src='http://code.jquery.com/jquery-1.8.2.js'></script> <button>Change descriptio...
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Get a list of URLs from a site [closed]

...URLs, this would only really work for sites that are collections of static HTML files. If the site has URL query parameters, server-side rewritten URLs, or any kind of include/require/etc. assembling of pages, this won't really work. – T.J. Schuck Jun 24 '11 a...
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How to make a in Bootstrap look like a normal link in nav-tabs?

... role attribute is not a valid attribute for the a element. (w3.org/TR/html5/text-level-semantics.html#the-a-element) – nZeus Apr 13 '17 at 20:14 1 ...
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CSS table-cell equal width

... HTML <div class="table"> <div class="table_cell">Cell-1</div> <div class="table_cell">Cell-2 Cell-2 Cell-2 Cell-2Cell-2 Cell-2</div> <div class="table_cell">Cell-3Cell-3 Cell-3...
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Semi-transparent color layer over background-image?

... absolute; top: 0; left: 0; width: 100%; height: 100%; } HTML for this: <div class="background"> <div class="layer"> </div> </div> Of course you need to define a width and height to the .background class, if there are no other elements inside of i...
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Center Oversized Image in Div

... wonderful: this works with any element. even with html 5 video... thanks! – taseenb Nov 20 '13 at 14:37 3 ...
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How to solve privileges issues when restore PostgreSQL Database

...roles instead: https://www.postgresql.org/docs/current/static/sql-set-role.html and https://www.postgresql.org/docs/current/static/sql-alterrole.html. share | improve this answer | ...
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Deleting all pending tasks in celery / rabbitmq

...>> app.control.purge() http://docs.celeryproject.org/en/latest/faq.html#how-do-i-purge-all-waiting-tasks share | improve this answer | follow | ...
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What is the difference between

...> Comments out code within brackets; not sent to client (as opposed to HTML comments). Visit Ruby Doc for more infos about ERB. share | improve this answer | follow ...