JavaScript tips

 I now put code examples inside a '<pre><code>' block I was using '&nbsp;' to indent lines. I set the '<code>' to 'display:block' so I can indent it with 'margin-left'. I start the example code immediately after the '<code>' tag to avoid an extra newline. I put everything in a 'div' with contenteditable="true" and  spellcheck="false" to allow 'copy and pasting' and to remove any red 'spell-check' wavy line. I give the 'div' 'max-width:100%' and 'overflow:auto' to stop scrollbars appearing in the browser's outer window There are more tips at: [bbingo.xyz/t](http://bbingo.xyz/t) There are more tips at:  bbingo.xyz/techtips/

 I changed some of my icons to have transparent backgrounds. These were the icons mentioned in the 'manifest' files of my Progressive Web Apps (PWA). I had given the icons white backgrounds to make them clearer as recommended by the PWA tutorial on Google's 'web.dev'. But these looked strange next to other icons on a Windows desktop. I made all my web pages PWA's by adding a 'manifest' file and starting a 'do-nothing' service worker. Chrome warns that loading these service workers slows things down. There are more tips at: bbingo.xyz/techtips/