
Styling the colour of <pre><code> horizonal scrollbars
Posted 4th December 2020
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Despite the absence of a proper scrollbar colouring standard in Cascading Style Sheets (CSS), there is a way to colour the horizontal scrollbar in a <pre><code> block that will work in Edge, Safari, Firefox and Chrome.

RGB to HEX in Excel
Posted 24th March 2016
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Use Microsoft Excel to convert Red-Green-Blue (RGB) values into hexadecimal colour codes and display the relevant colour graphically beside each output.