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Specify fallback font sizes in CSS?

Is there any way to specify different font sizes for fallback fonts in CSS? I want to do something like this (which obviously does not work): div { font-family: “Arial Narrow”, Arial, Helvetica, …

How to remove spaces from a string using JavaScript?

How to remove spaces in a string? For instance: Input: Output: Answer This? Example Update: Based on this question, this: is a better solution. It produces the same result, but it does it faster. The Regex s is the regex for “whitespace”, and g is the “global” flag, meaning match ALL s (whitespaces). A great explanation for + can be

Is an empty iframe src valid?

I want an iframe to initially have src as blank and then once the page loads; call a JS function and then set the src value to an actual one.. So is