大约有 5,475 项符合查询结果（耗时：0.0167秒） [XML]
CSS I want a div to be on top of everything
...ed scheme and so I kept the position as fixed but still set the z-index to 1000 and got the desired results, it covered a div lower on the page as I scrolled, can you explain why that happened even though I was using a static position?
– Boo89100
Jul 28 '16 at ...
How do I vertically align text in a div?
...
not working with percent: height:100%; line-height:100%
– albanx
Jul 2 '15 at 13:41
|
show 5 more ...
How to justify a single flexbox item (override justify-content)
...n-right: auto to align the child to the left.
.container {
height: 100px;
border: solid 10px skyblue;
display: flex;
justify-content: flex-end;
}
.block {
width: 50px;
background: tomato;
}
.justify-start {
margin-right: auto;
}
<div class="container">
&l...
Weird Integer boxing in Java
...atch
{
public static void main(String[] args)
{
Integer a = 1000, b = 1000; //1
System.out.println(a == b);
Integer c = 100, d = 100; //2
System.out.println(c == d);
}
}
Output:
false
true
Yep the first output is produced for comparing reference; 'a'...
jQuery on window resize
... ,"f50" : function(){ alert(50); }
,"f100" : function(){ alert(100); }
,"f500" : function(){ alert(500); }
,"f1000" : function(){ alert(1000);}
};
//---------------------
$(wi...
How does a hash table work?
... above, each of the 300 filing cabinet would (statistically) contain about 100 records. Searching (regardless the order) through 100 records is much faster than having to deal with 30,000.
You may have noticed that some actually already do this. But instead of devising a hashing methodology to ge...
How is a CRC32 checksum calculated?
...ia
CRC calculation
Or in hex and binary:
0x 01 04 C1 1D B7
1 0000 0100 1100 0001 0001 1101 1011 0111
The highest term (x32) is usually not explicitly written, so it can instead be represented in hex just as
0x 04 C1 1D B7
Feel free to count the 1s and 0s, but you'll find they match u...
jQuery document.createElement equivalent?
...benchmark, and here are roughly the results of repeating the above options 100,000 times:
jQuery 1.4, 1.5, 1.6
Chrome 11 Firefox 4 IE9
<div> 440ms 640ms 460ms
<div></div> 420ms 650ms 480ms
createElement 100ms 180ms 300m...
How to load images dynamically (or lazily) when users scrolls them into view
...p; $(this).offset().top < ($(window).scrollTop() + $(window).height() + 100) ) {
var source = $(this).data('src');
$(this).attr('src', source);
$(this).removeAttr('data-src');
}
})
})
Sample html code
<div>
<img src="" data-src="path...
Tools for making latex tables in R [closed]
...lt;-data.frame(animal=sample(c("elephant", "dog", "cat", "fish", "snake"), 100,replace=TRUE),
colour=sample(c("red", "blue", "green", "yellow"), 100,replace=TRUE),
size=rnorm(100,mean=500, sd=150),
age=rlnorm(100, meanlog=3, sdlog=0.5))
#generate a table
...