


Weekly Platform News: CSS ::marker pseudo-element, pre-rendering web components, adding Webmention to your site
Apr 19, 2025 am 11:25 AM?ime's weekly web platform news delivers insightful updates for developers. This week's highlights include keyboard accessibility issues with date pickers, a new web component compiler tackling FOUC, styling list item markers with CSS, and a straightforward guide to adding Webmentions.
Date Input Accessibility Concerns
Standard text fields are preferred by keyboard users over complex date pickers; screen reader users also experience challenges with native date controls. Plain text inputs with custom validation offer a more accessible solution.
Prioritizing plain text inputs for dates, with client-side and server-side validation, has proven effective, especially for known dates like birthdays.
(via Adrian Roselli)
Streamlining Web Components with Stencil
Stencil, a web component compiler, pre-renders components (including Shadow DOM) or delays rendering until styling is complete, preventing FOUC (Flash of Unstyled Content). It optimizes polyfill loading and provides a developer-friendly Component API with helpful decorators and hooks.
import { Component, Prop, h } from "@stencil/core"; @Component({ tag: "my-component" }) export class MyComponent { @Prop() age: number = 0; render() { return <div>I am {this.age} years old</div>; } }
(via Max Lynch)
Styling List Item Markers with CSS ::marker
The ::marker
pseudo-element allows styling of list item markers (bullets, numbers) when display: list-item
is used. Currently, Firefox is the primary browser with full support.
(via Rachel Andrew)
Implementing Webmentions in Four Steps
Adding Webmentions to your site enhances engagement and interaction:
- Register: Create an account on Webmention.io (a webmention receiving service).
-
Add Link Tag: Include
<link rel="webmention" href="%5Byour-webmention-endpoint%5D">
in your HTML. CMS plugins are also available. - Fetch Webmentions: Use Ajax to retrieve webmentions from Webmention.io for display.
- Automate Sending: Employ webmention.app to automate sending webmentions when publishing content with links to other Webmention-enabled sites.
(via Daniel Aleksandersen)
The above is the detailed content of Weekly Platform News: CSS ::marker pseudo-element, pre-rendering web components, adding Webmention to your site. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undress AI Tool
Undress images for free

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

CSS blocks page rendering because browsers view inline and external CSS as key resources by default, especially with imported stylesheets, header large amounts of inline CSS, and unoptimized media query styles. 1. Extract critical CSS and embed it into HTML; 2. Delay loading non-critical CSS through JavaScript; 3. Use media attributes to optimize loading such as print styles; 4. Compress and merge CSS to reduce requests. It is recommended to use tools to extract key CSS, combine rel="preload" asynchronous loading, and use media delayed loading reasonably to avoid excessive splitting and complex script control.

ThebestapproachforCSSdependsontheproject'sspecificneeds.Forlargerprojects,externalCSSisbetterduetomaintainabilityandreusability;forsmallerprojectsorsingle-pageapplications,internalCSSmightbemoresuitable.It'scrucialtobalanceprojectsize,performanceneed

No,CSSdoesnothavetobeinlowercase.However,usinglowercaseisrecommendedfor:1)Consistencyandreadability,2)Avoidingerrorsinrelatedtechnologies,3)Potentialperformancebenefits,and4)Improvedcollaborationwithinteams.

CSSismostlycase-insensitive,butURLsandfontfamilynamesarecase-sensitive.1)Propertiesandvalueslikecolor:red;arenotcase-sensitive.2)URLsmustmatchtheserver'scase,e.g.,/images/Logo.png.3)Fontfamilynameslike'OpenSans'mustbeexact.

Autoprefixer is a tool that automatically adds vendor prefixes to CSS attributes based on the target browser scope. 1. It solves the problem of manually maintaining prefixes with errors; 2. Work through the PostCSS plug-in form, parse CSS, analyze attributes that need to be prefixed, and generate code according to configuration; 3. The usage steps include installing plug-ins, setting browserslist, and enabling them in the build process; 4. Notes include not manually adding prefixes, keeping configuration updates, prefixes not all attributes, and it is recommended to use them with the preprocessor.

CSScounterscanautomaticallynumbersectionsandlists.1)Usecounter-resettoinitialize,counter-incrementtoincrease,andcounter()orcounters()todisplayvalues.2)CombinewithJavaScriptfordynamiccontenttoensureaccurateupdates.

In CSS, selector and attribute names are case-sensitive, while values, named colors, URLs, and custom attributes are case-sensitive. 1. The selector and attribute names are case-insensitive, such as background-color and background-Color are the same. 2. The hexadecimal color in the value is case-sensitive, but the named color is case-sensitive, such as red and Red is invalid. 3. URLs are case sensitive and may cause file loading problems. 4. Custom properties (variables) are case sensitive, and you need to pay attention to the consistency of case when using them.

Theconic-gradient()functioninCSScreatescirculargradientsthatrotatecolorstopsaroundacentralpoint.1.Itisidealforpiecharts,progressindicators,colorwheels,anddecorativebackgrounds.2.Itworksbydefiningcolorstopsatspecificangles,optionallystartingfromadefin
