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Set opacity of background image without affecting child elements
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You can use CSS linear-gradient() with rgba().
div {
width: 300px;
height: 200px;
background: linear-gradient(rgba(255,255,255,.5), rgba(255,255,255,.5)), url("https://i.imgur.com/xnh5x47.jpg");
}
span {
background: black;
color: white;
}
<div><span>Hello wo...
Detect if an input has text in it using CSS — on a page I am visiting and do not control?
... directive is needed to work around a design change
introduced in GM 1.0. It restores the sandbox.
*/
var inpsToMonitor = document.querySelectorAll (
"form[name='JustCSS'] input[name^='inp']"
);
for (var J = inpsToMonitor.length - 1; J >= 0; --J) {
inpsToMonitor[J].addEventListen...
How can I assign an ID to a view programmatically?
...ns unique:
Here, values/ids.xml defines a custom id:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<item name="reservedNamedId" type="id"/>
</resources>
Then once the ViewGroup or View has been created, you can attach the custom id
myViewGroup.setId(R.id.reserve...
Alternative to itoa() for converting integer to string C++? [duplicate]
...;
out << i;
s = out.str();
Taken from http://notfaq.wordpress.com/2006/08/30/c-convert-int-to-string/
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How can I parse a time string containing milliseconds in it with python?
...s. Not sure if this is documented anywhere. But if you're using 2.6 or 3.0, you can do this:
time.strptime('30/03/09 16:31:32.123', '%d/%m/%y %H:%M:%S.%f')
Edit: I never really work with the time module, so I didn't notice this at first, but it appears that time.struct_time doesn't actually sto...
How do I print out the contents of an object in Rails for easy debugging?
...ssor :name, :age
end
user = User.new
user.name = "John Smith"
user.age = 30
puts user.inspect
#=> #<User:0x423270c @name="John Smith", @age=30>
puts user.to_yaml
#=> --- !ruby/object:User
#=> age: 30
#=> name: John Smith
Hope that helps.
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Swipe to Delete and the “More” button (like in Mail app on iOS 7)
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20 Answers
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What exactly does big Ө notation represent?
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edited Aug 20 '17 at 2:43
Pierre-Antoine Guillaume
54077 silver badges1919 bronze badges
a...
Why do we have to normalize the input for an artificial neural network?
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103
It's explained well here.
If the input variables are combined linearly, as in an MLP [multi...