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Can I set the height of a div based on a percentage-based width? [duplicate]
... auto;
overflow: hidden;
}
.container:before {
content: "";
display: block;
margin-top: 100%;
}
.child {
position: absolute;
top: 0;
left: 0;
}
Support table for viewport units
I wrote about this approach and others in a CSS-Tricks article on scaling responsive animations that you s...
URL encoding in Android
...tedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
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Using CSS for a fade-in effect on page load
...Alternatively, you can use jQuery (or plain JavaScript; see the third code block) to change the class on load:
jQuery
$("#test p").addClass("load");
CSS
#test p {
opacity: 0;
font-size: 21px;
margin-top: 25px;
text-align: center;
-webkit-transition: opacity 2s ease-in;
...
How do I specify a password to 'psql' non-interactively?
...atabase creation process with a shell script and one thing I've hit a road block with passing a password to psql .
Here is a bit of code from the shell script:
...
Converting string from snake_case to CamelCase in Ruby
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I think the lowerCase variant is wrong. The inject block should not directly manipulate the buffer but return the new value for the buffer: self.split('_').inject([]){ |buffer,e| buffer + [buffer.empty? ? e : e.capitalize] }.join
– Sven Koschnicke
...
No Activity found to handle Intent : android.intent.action.VIEW
...
Wrapping that much code in a try block with general exception is usually not a good idea. The behavior here is totally undefined - can you tell which inputs will print a message at a glance? What exceptions will arise, and why? This is a sign of code that ha...
How to check programmatically if an application is installed or not in Android?
...
If you know the package name, then this works without using a try-catch block or iterating through a bunch of packages:
public static boolean isPackageInstalled(Context context, String packageName) {
final PackageManager packageManager = context.getPackageManager();
Intent intent = packa...
ActiveModel::ForbiddenAttributesError when creating new user
...dmin don't forget that there is also a permit_params in the model register block:
ActiveAdmin.register Api::V1::Person do
permit_params :name, :address, :etc
end
These need to be set along with those in the controller:
def api_v1_person_params
params.require(:api_v1_person).permit(:name, :ad...
Django gives Bad Request (400) when DEBUG = False
...
I think ALLOWED_HOSTS blocks the entire host. USE_X_FORWARDED_HOST only determines if an HTTP header is used.
– Keith
Nov 7 '17 at 19:52
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Where can I find the “clamp” function in .NET?
... If you're going for readability, double ternaries would be avoided and IF blocks would be used instead. 2) You don't get the joke, do you? xD
– XenoRo
May 11 '18 at 20:55
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