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How to center a (background) image within a div?
... If you want the entire div to be filled with the image and no extra space you should use background-size: cover; If you want the entire image to show without any part of the image being cut off or stretched you want to use background-size: contain;
– Zlerp
...
How long does it take for GitHub page to show changes after changing index.html
...ew files. If you want to test it (or break a cache) you can append a query string like myfile.jpg?ver=123 and every time you update the string the cache will bust, and you can verify that the CDN is updating.
– Joel Glovier
Dec 19 '16 at 14:10
...
What is “the inverse side of the association” in a bidirectional JPA OneToMany/ManyToOne association
...e = 1)
private Integer id;
@Column(name = "BOY_NAME")
private String name;
@OneToOne(cascade = { CascadeType.ALL })
private GirlFriend21 girlFriend;
public BoyFriend21(String name) {
this.name = name;
}
public BoyFriend21() {
}
public Integer getI...
Read/write to Windows registry using Java
... following code obtains the exact windows distribution from the registry:
String value = WinRegistry.readString (
WinRegistry.HKEY_LOCAL_MACHINE, //HKEY
"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", //Key
"ProductName"); ...
Which encoding opens CSV files correctly with Excel on both Mac and Windows?
...king good with special characters and separated fields. I start my output string with "\ufeff" as a byte order mark (BOM), then using "\t" tabs in place of commas for field separation, and encoding the file with "utf-16LE". Works like a charm, thanks to this page!
– Geek Stoc...
Flatten nested dictionaries, compressing keys
...y = parent_key + sep + k if parent_key else k assumes that keys are always strings, otherwise it will raise TypeError: cannot concatenate 'str' and [other] objects. However, you could fix that by simply coercing k to string (str(k)), or concatenating keys into a tuple instead of a string (tuples can...
Why do we need extern “C”{ #include } in C++?
..._gxx_personality_v0
The foo function is actually called "_Z3foov". This string contains type information for the return type and parameters, among other things. If you instead write test.C like this:
extern "C" {
void foo() { }
}
Then compile and look at symbols:
$ g++ -c test.C
$ nm tes...
Difference between DateTime and Time in Ruby
...or converting times to XML (for XMLTV files)
# Will take a date time as a string or as a Time or DateTime object and
# format it appropriately for xmtlv.
# For example, the 22nd of August, 2006 at 20 past midnight in the British Summertime
# timezone (i.e. GMT plus one hour for DST) gives: "200608...
How to get started with developing Internet Explorer extensions?
...ordHighlighterBHO : IObjectWithSite, IOleCommandTarget
{
const string DefaultTextToHighlight = "browser";
IWebBrowser2 browser;
private object site;
#region Highlight Text
void OnDocumentComplete(object pDisp, ref object URL)
{
try
...
Best way for a 'forgot password' implementation? [closed]
...s the time when the user pressed the "Forgot Password" button. The ID is a string. A long random string is created (say, a GUID) and then hashed like a password (which is a separate topic in and of itself). This hash is then used as the 'ID' in the table.
The system sends an email to the user which ...