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Image inside div has extra space below the image
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By default, an image is rendered inline, like a letter so it sits on the same line that a, b, c and d sit on.
There is space below that line for the descenders you find on letters like g, j, p and q.
You can:
adjust the...
How to tell if a tag failed to load
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But the timeout has to be provided by the page's coder right? So the coder might choose a different timeout to the browser, assume the script load timed out, and then have it succeed a bit later. Or not?
– hippietrail
Dec...
Single Sign On across multiple domains [closed]
...the session id from the master. The client can find out the logged in user by querying the shared database using the session id.
Notes:
The session id is a unique global identifier generated with algorithm from RFC 4122
The master_login.php will only redirect to domains in its whitelist
The mast...
How can I generate an ObjectId with mongoose?
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
How to crop circular area from bitmap in Android
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You could also do this by clipping the bitmap against a circular clipping path. You could either do this every time you draw the bitmap, which means you'd never actually create a bitmap with transparent pixels, or you could draw the clipped bitmap...
Setting CSS pseudo-class rules from JavaScript
... an inline style="..." attribute (as there is no selector).
You can do it by altering the stylesheet, for example by adding the rule:
#elid:hover { background: red; }
assuming each element you want to affect has a unique ID to allow it to be selected.
In theory the document you want is http://w...
How do you delete an ActiveRecord object?
...delete_all with conditions has been deprecated in Rails 5.1 - see guides.rubyonrails.org/5_1_release_notes.html
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JavaScript hide/show element
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function showStuff(id, text, btn) {
document.getElementById(id).style.display = 'block';
// hide the lorem ipsum text
document.getElementById(text).style.display = 'none';
// hide the link
btn.style.display = 'none';
}
<td class="post">
<a href="...
How to copy Docker images from one host to another without using a repository
...file path or shared NFS place see the following example.
Get the image id by doing:
sudo docker images
Say you have an image with id "matrix-data".
Save the image with id:
sudo docker save -o /home/matrix/matrix-data.tar matrix-data
Copy the image from the path to any host. Now import to you...
Alter a MySQL column to be AUTO_INCREMENT
...st nothing) for MySQL integer types. The only thing that may be influenced by the number is the display width, and it is up to the client to do that. But don't be deceived and think that it works like it does for VARCHAR and DECIMAL types - in those cases, the amount of data you can store in there i...