All you need is CSS - Speaker Deck

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All you need is CSS Radoslav Stankov

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Radoslav Stankov @rstankov rstankov.com

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https://tips.rstankov.com

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Best JavaScript Is No JavaScript

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I ❤

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I ❤

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I ❤

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SIMPLIFYING PROPERTY MANAGEMENT FOR MODERN COMMUNITIES LIVO.ME

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$ Side project

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% LIVO Architecture & Ruby on Rails ' No JavaScript ( No custom CSS, use Tailwind ) Extensive e2e tests * Focus on domain

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... and for mobile apps used by inhabitants

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% LIVO Architecture & Ruby on Rails ' No JavaScript ( No custom CSS, use Tailwind ) Extensive e2e tests * Focus on domain

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, How to avoid writing code checklist - reduce scope, by adjusting business requirement . use build-in feature of the browser / use feature from core platform - Next / React / Angular ... 0 use type system 1 move to logic backend 2 (only when I really have to) use 3rd party library (browser edition)

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HTML CSS JavaScript

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Plain HTML/CSS Plain HTML/CSS Everything with JS

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:hover

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function MyButton() { const [isHovered, setIsHovered] = useState(false); const className = isHovered ? 'button button-hover' : 'button'; const onMouseEnter = () => setIsHovered(true); const onMouseLeave = () => setIsHovered(false); return ( Button ); }

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css grid

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.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr)); }

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System Requirements

Requires a computer running an operating system. The computer must have some memory and ideally some kind of long-term storage. An input device as well as some form of output device is recommended.

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  ... ...  

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  ... ...  

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details[open] .open-hidden { display: none; } details:not([open]) .open-visible { display: none; }

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Responsive Table

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@media (max-width: 640px) { .table-component, .table-component thead, .table-component tbody, .table-component tfoot, .table-component tr { display: block; } .table-component tbody td { display: ﬂex; } .table-component tbody td:not(.actions):before { content: attr(title); ﬂex: 0 1 35%; display: block; white-space: nowrap; } }

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3 Accessible 4 Mobile friendly 5 All batteries include ➡ No extra code 7 Single date, no range 7 Style doesn't match our site

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3 Accessible 4 Build-in backdrop 5 Auto handling of forms (example: auto-focus) 8 Stops scrolling of back page 9 Auto handle of ESC : Style as you wish 7 JavaScript to trigger the modal version 7 JavaScript need to close dialog when click backdrop

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import { setEventListners } from './utils'; setEventListners(document, { '[data-dialog]:click': (e) => { document .getElementById(e.target.closest('[data-dialog]').dataset.dialog) ?.showModal(); }, 'dialog:click': (e) => { if (e.target.tagName === 'DIALOG') { e.target.close(); } }, });

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https://chatgpt.com/share/2d4606ad-c764-4db8-9ed5-158e90e8e391

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/* Tooltip base styles for any element with a title attribute */ [title] { position: relative; cursor: pointer; display: inline-block; } /* Hidden before hover */ [title]::before, [title]::after { visibility: hidden; opacity: 0; pointer-events: none; } /* Tooltip text styling */ [title]::after { content: attr(title); position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%) translateY(-5px); white-space: nowrap; z-index: 10; padding: 8px; border-radius: 4px; background-color: black; color: white; text-align: center; font-size: 14px; line-height: 1.2; transition: opacity 0.3s, visibility 0.3s; } /* Tooltip arrow */ [title]::before { content: ''; position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%) translateY(5px); border-width: 5px; border-style: solid; border-color: black transparent transparent transparent; transition: opacity 0.3s, visibility 0.3s; } /* Show tooltip on hover */ [title]:hover::before, [title]:hover::after { visibility: visible; opacity: 1; }

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pointer-events: none; } /* Tooltip text styling */ [title]::after { content: attr(title); position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%) translateY(-5px); white-space: nowrap; z-index: 10; padding: 8px; border-radius: 4px; background-color: black; color: white; text-align: center; font-size: 14px; line-height: 1.2; transition: opacity 0.3s, visibility 0.3s; } /* Tooltip arrow */ [title]::before {

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line-height: 1.2; transition: opacity 0.3s, visibility 0.3s; } /* Tooltip arrow */ [title]::before { content: ''; position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%) translateY(5px); border-width: 5px; border-style: solid; border-color: black transparent transparent transparent; transition: opacity 0.3s, visibility 0.3s; } /* Show tooltip on hover */ [title]:hover::before, [title]:hover::after { visibility: visible; opacity: 1; }