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CSS: Set a background color which is 50% of the width of the window
...Backgrounds with background-size:
You can apply a background color to the html element, and then apply a background-image to the body element and use the background-size property to set it to 50% of the page width. This results in a similar effect, though would really only be used over gradients if...
What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort
...ws 10 comes after 9.
See http://www.gnu.org/software/coreutils/manual/html_node/sort-invocation.html
‘-g’ ‘--general-numeric-sort’
‘--sort=general-numeric’ Sort
numerically, using the standard C
function strtod to convert a prefix of
each line to a double-precision
flo...
How to detect Ctrl+V, Ctrl+C using JavaScript?
...ecommend Jan Wolter's JavaScript key handling article: unixpapa.com/js/key.html I've used it for reference many times and not found an error.
– Tim Down
May 25 '10 at 18:30
3
...
Having both a Created and Last Updated timestamp columns in MySQL 4.0
...SQL 5.0). See the documentation: dev.mysql.com/doc/refman/5.0/en/timestamp.html
– SimonSimCity
Jan 21 '12 at 11:32
Cou...
How to dynamically create CSS class in JavaScript and apply?
...ate a CSS stylesheet class dynamically in JavaScript and assign it to some HTML elements like - div, table, span, tr, etc and to some controls like asp:Textbox, Dropdownlist and datalist.
...
Using margin:auto to vertically-align a div
...
Edit: it's 2020, I would use flex box instead.
Original answer:
Html
<body>
<div class="centered">
</div>
</body>
CSS
.centered {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
...
Download multiple files with a single action
...ide of them, wait for downloads to start and remove iframes:
<!DOCTYPE HTML>
<html>
<body>
<button id="download">Download</button>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
<scrip...
100% Min Height CSS layout
...he text size a bit or resize your browser window to test this
layout.
html,body {
margin:0;
padding:0;
height:100%; /* needed for container min-height */
background:gray;
font-family:arial,sans-serif;
font-size:small;
color:#666;
}
h1 {
font:1.5em georgia,seri...
Slow Requests on Local Flask Server
...e useful: Windows techunboxed.com/2012/08/how-to-disable-ipv6-in-windows-8.html Ubuntu noobslab.com/2012/05/disable-ipv6-if-your-internet-is.html
– Larry Eitel
Jan 21 '13 at 14:18
...
Rails 4: List of available datatypes
...i.rubyonrails.org/classes/ActiveRecord/ConnectionAdapters/SchemaStatements.html#method-i-add_column
These are the same as with Rails 3.
If you use PostgreSQL, you can also take advantage of these:
:hstore
:json
:jsonb
:array
:cidr_address
:ip_address
:mac_address
They are stored as strings if y...