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Why can't I center with margin: 0 auto?

I have a #header div that is 100% width and within that div I have an unordered list. I have applied margin: 0 auto to the unordered list but it won't center it within the header div. ...
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Check if a string matches a regex in Bash script

... 330 You can use the test construct, [[ ]], along with the regular expression match operator, =~, to ...
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convert from Color to brush

... edited Jan 15 '14 at 11:50 user2140173 answered Apr 12 '11 at 20:16 ...
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iterating over each character of a String in ruby 1.8.6 (each_char)

... | edited Sep 28 '09 at 1:02 answered Sep 28 '09 at 0:55 ...
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Add new row to dataframe, at specific row-index, not appended?

...s the (often slow) rbind call: existingDF <- as.data.frame(matrix(seq(20),nrow=5,ncol=4)) r <- 3 newrow <- seq(4) insertRow <- function(existingDF, newrow, r) { existingDF[seq(r+1,nrow(existingDF)+1),] <- existingDF[seq(r,nrow(existingDF)),] existingDF[r,] <- newrow existing...
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SVG: text inside rect

...t element ( so it appears on top ). <svg xmlns="http://www.w3.org/2000/svg"> <g> <rect x="0" y="0" width="100" height="100" fill="red"></rect> <text x="0" y="50" font-family="Verdana" font-size="35" fill="blue">Hello</text> </g> </sv...
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T-SQL datetime rounded to nearest minute and nearest hours with using functions

In SQL server 2008, I would like to get datetime column rounded to nearest hour and nearest minute preferably with existing functions in 2008. ...
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RegEx to find two or more consecutive chars

...? – Alexander Mills Sep 6 '18 at 21:09 16 Alexander, just to clear few things: {2} means that the...
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How to prevent Browser cache for php site

...;?php header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); header("Cache-Control: post-check=0, pre-check=0", false); header("Pragma: no-cache"); ?> share | improve this ans...
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How do I calculate the normal vector of a line segment?

... answered Aug 7 '09 at 8:49 Oren TrutnerOren Trutner 22k77 gold badges5050 silver badges5555 bronze badges ...