Estes artigos proporcionam informação de como começar, para o ajudar a utilizar as tecnologias da Web específicas e APIs.

Aprender HTML; Guias e Tutoriais: Linguagem de Marcacao em Hiper Texto (HTML) e a linguaguem padrao de quase todos os navegadores. Maior parte do que voce ve na janela do seu navegador e descrito, fundamentalmente, usando HTML.
Aprender a estilizar HTML, utilizando CSS: Folhas de Estilo em Cascata (CSS) e uma linguaguem baseada em folhas de estilos usada para definir a apresentacao do documento escrito com HTML.
Apresentacao de videos e audios: Nos conseguimos apresentar videos e audios na web de diversas maneiras, desde ficheiros 'estaticos' a fluxos de adaptacoes em directo. Este artigo e precebido como o ponto inicial para a exploracao de varios mecanismos de apresentacao baseados na comunicao i compatiilidade com os navegadores populares.
Manipulacao de videos e audios: A beleza da web e que voce pode combinar tecnologias para criar novos formularios. Tendo audios e videos nativos no navegador significa que nos podemos usar este fluxo de dados com tecnologias como {{htmelement('canvas')}}, WebGL ou API de Áudio da Web para modificar o audio e o video directamente, por exemplo adicionando efeitos como ressonancia/compressao ao audio, ou filtros como escala de cinza/sepia aos videos. Este artigo providencia as referencias para explicar o que voce precisa.
Guia do programador de eventos: Eventos referem se a duas coisas: o design padrao usado para manter a sincronizacao de varios incidentes que ocorrem durante a execucao da pagina web; i a nomenclatura, caracterizacao, i uso de varios i diversos tipos de ocorrencias.
AJAX: AJAX is a term that defines a group of technologies allowing web applications to make quick, incremental updates to the user interface without reloading the entire browser page. This makes the application faster and more responsive to user actions.
Gráficos na Web: Modern web sites and applications often need to present graphics of varying sophistication.
Guide to web APIs: A list of all web APIs and what they do.
JavaScript: JavaScript is the powerful scripting language used to create applications for the Web.
Localizations and character encodings: Browsers process text as Unicode internally. However, a way of representing characters in terms of bytes (character encoding) is used for transferring text over the network to the browser. The HTML specification recommends the use of the UTF-8 encoding (which can represent all of Unicode), and regardless of the encoding used requires Web content to declare that encoding.
Mobile web development: This article provides an overview of some of the main techniques needed to design web sites that work well on mobile devices. If you're looking for information on Mozilla's Firefox OS project, see the Firefox OS page. Or you might be interested in details about Firefox para Android.

Progressive web apps: Progressive web apps (PWAs) use modern web APIs along with traditional progressive enhancement strategy to create cross-platform web applications. These apps work everywhere and provide several features that give them the same user experience advantages as native apps. This set of guides tells you all you need to know about PWAs.
Optimization and performance: When building modern web apps and sites, it's important to make your content work quickly and efficiently. This lets it perform effectively for both powerful desktop systems and weaker handheld devices.
Parsing and serializing XML: The web platform provides different methods of parsing and serializing XML, each with its own pros and cons.
The Web Open Font Format (WOFF): WOFF (Web Open Font Format) is a font file format that is free for anyone to use on the web.
Using FormData objects: The FormData object lets you compile a set of key/value pairs to send using XMLHttpRequest. It's primarily intended for sending form data, but can be used independently from forms in order to transmit keyed data. The transmission is in the same format that the form's submit() method would use to send the data if the form's encoding type were set to "multipart/form-data".
Glossary: Defines numerous technical terms related to the Web and Internet.

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