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  1. lynkfs

    css styling

    Browsers are certainly talented as multi-language processors. They have to understand html, css, javascript, svg and lately web-assembly as a fifth language. XML and Json are format specifiers, but could be borderline categorised as languages as well. Smart elevates javascript to great heights, but sort of leaves the other ones at the periphery. Especially css. Css can be used for a) component styling including colours, fonts etc, b) visual layout of pages/forms and reacting responsively to screen size and orientation and c) interactivity in various forms. Some of this overlaps with the js domain. Smart basically uses css for a) but not for b) or c). Looking at various css frameworks out there, I would categorise these as on one end of the scale there are many UI kit frameworks where the emphasis is on components - buttons, accordions, cards etc. Sometimes as css stand-alone files, sometimes in conjunction with js. Most of these also have functionality for layout purposes, usually based on flexbox or internal grid structures. on the other end of the scale there are frameworks which forego the component focus, but instead provide a large number of elementary styling functions, which can be applied to any component. and many which occupy a space in between This post is about the open source Tailwind framework, belonging in the second category above, just to see how that would work in the Smart environment. Tailwind comes in 2 flavours : a static framework which can be accessed locally or from a cdn, and a more dynamic version. The latter can be tailored dynamically for any specific project and basically needs to be part of the build toolchain. To keep it simple I used the static version. Change the res/app.css reference to the tailwind css file (either just replace it or change the reference in the index.html file). Now any component can be made to use this styling. Because this is not more (or less) than a list of individual styling functions, the use boils down to defining what you want. Tell a story as in "give me a button with a green background, which turns to blue on hover, has rounded corners and white text and a shadow effect which makes it seem floating". In code : W3Button1.handle.className := "bg-green-500 hover:bg-blue-700 text-white rounded shadow-2xl"; The second button in the demo project (see below) has a different story (className sequence), which gives it a totally different look and feel. I kind of like this approach, it works very well with any component, thus also with the built in Smart components. It is a bit of a drag specifying these className sequences by hand, so it would be nice if this would be supported in the IDE. There are after all only a small number of categories of these elementary styling bits : backgrounds, typography, borders, spacing, sizing, svg, interactivity and effects. And a relatively limited list of functions per category (bg-green-500 means a green background, 500 is the fifth shade in the green colour scheme. So there will be a bg-green-600, a bg-blue-200 etc). Doable I think. Apart from these styling functions, Tailwind also has a number of layout functions. Smart has its own layout mechanism, however the Tailwind functions can be used as well. See the 'card' component in the demo. Demo and source