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Center image in div horizontally [duplicate]
...ide image" />
</div>
</div>
CSS
img
{
max-width: 100%;
max-height: 100%;
display: block;
margin: auto auto;
}
.outer
{
border: 1px solid #888;
width: 100px;
height: 100px;
}
.inner
{
display:table-cell;
height: 100px;
width: 100px;
...
How to get indices of a sorted array in Python
...
Something like next:
>>> myList = [1, 2, 3, 100, 5]
>>> [i[0] for i in sorted(enumerate(myList), key=lambda x:x[1])]
[0, 1, 2, 4, 3]
enumerate(myList) gives you a list containing tuples of (index, value):
[(0, 1), (1, 2), (2, 3), (3, 100), (4, 5)]
You sor...
Canvas width and height in HTML5
...fff; border:1px solid #ccc; width:400px; height:160px }
<canvas width="100" height="40"></canvas>
<p>Showing that re-drawing the same antialiased lines does not obliterate old antialiased lines.</p>
...
Convert a matrix to a 1 dimensional array
...little benchmark, as follows:
library(microbenchmark)
x=matrix(runif(1e4),100,100) # generate a 100x100 matrix
microbenchmark(y<-as.vector(x),y<-x[1:length(x)],y<-array(x),y<-c(x),times=1e4)
The first solution uses as.vector(), the second uses the fact that a matrix is stored as a con...
How to get current date & time in MySQL?
...ange, disk_space,
network_shares,date_time) VALUES('m1','ONLINE','ONLINE','100GB','ONLINE',now() )
or
INSERT INTO servers (server_name, online_status, exchange, disk_space,
network_shares,date_time) VALUES('m1', 'ONLINE', 'ONLINE', '100GB', 'ONLINE'
,CURRENT_TIMESTAMP() )
Replace date_time wit...
Pass Variables by Reference in Javascript
...rvar('test_ref_number');
test_ref_number = 5;
function Fn1 (v) { v.value = 100; }
console.log("rvar('test_ref_number');");
console.log("test_ref_number = 5;");
console.log("function Fn1 (v) { v.value = 100; }");
console.log('test_ref_number.value === 5', test_ref_number.value === 5);
console.log(" "...
Return multiple columns from pandas apply()
..._test['size'].apply(sizes))
Test result are:
Separate df.apply():
100 loops, best of 3: 1.43 ms per loop
Return Series:
100 loops, best of 3: 2.61 ms per loop
Return tuple:
1000 loops, best of 3: 819 µs per loop
...
How to use CSS to surround a number with a circle?
...div class="numberCircle">1</div>
<div class="numberCircle">100</div>
<div class="numberCircle">10000</div>
<div class="numberCircle">1000000</div>
If you need to make the content longer or shorter, all you need to do is adjust the width of the c...
What do querySelectorAll and getElementsBy* methods return?
...t');
for(var i = 0; i < elems.length; i++) {
elems[i].style.size = '100px';
}
If you prefer something shorter, consider using jQuery:
$('.myElement').css('size', '100px');
share
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improve...
Can't connect to MySQL server error 111 [closed]
I installed mysql server on linux box IP = 192.168.1.100 but when i try to connect to this IP it alway error(111). but use localhost and 127.0.0.1 is OK.
...