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Why em instead of px?

I heard you should define sizes and distances in your stylesheet with em instead of in pixels. So the question is why should I use em instead of px when defining styles in css? Is there a good example that illustrates this? ...
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Is there a way to loop through a table variable in TSQL without using a cursor?

...impler code. Depending on your data it may be possible to loop using just SELECT statements as shown below: Declare @Id int While (Select Count(*) From ATable Where Processed = 0) > 0 Begin Select Top 1 @Id = Id From ATable Where Processed = 0 --Do some processing here Update ATa...
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Get selected option text with JavaScript

... Try options function myNewFunction(sel) { alert(sel.options[sel.selectedIndex].text); } <select id="box1" onChange="myNewFunction(this);"> <option value="98">dog</option> <option value="7122">cat</option> <option value="142">bird</option&g...
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Getting the minimum of two values in SQL

...led OwedPast . They are both results of some subqueries in SQL. How can I select the smaller of the two and return it as a value titled PaidForPast ? ...
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Select2 dropdown but allow new values by user?

I want to have a dropdown with a set of values but also allow the user to "select" a new value not listed there. 9 Answers...
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MySQL select 10 random rows from 600K rows fast

How can I best write a query that selects 10 rows randomly from a total of 600k? 26 Answers ...
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How to add extra info to copied web text

...cument.location.href}`; event.clipboardData.setData('text', document.getSelection() + pagelink); event.preventDefault(); }); Lorem ipsum dolor sit amet, consectetur adipiscing elit.<br/> <textarea name="textarea" rows="7" cols="50" placeholder="paste your copied text here"></...
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How to take MySQL database backup using MySQL Workbench?

...ble) within Server Administration. Steps to Create New Server Instance: Select New Server Instance option within Server Administrator. Provide connection details. After creating new server instance , it will be available in Server Administration list. Double click on Server instance you have cr...
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SQL exclude a column using SELECT * [except columnA] FROM tableA?

We all know that to select all columns from a table, we can use 41 Answers 41 ...
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jQuery UI Tabs - How to Get Currently Selected Tab Index

...answer is there - use ui.index property to get the current index in the tabselect event..... – redsquare Nov 5 '09 at 12:27 17 ...