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HTML

Sébastien Merour
publié le 13/06/2020 à 15h46 | modifé le 13/06/2020 à 19h00
Catégorie : LangagesCommentaires (19602)
HTML
Description

HTML signifie : Hypertext Markup Language

Le langage HTML est constitué :

- de balises (tags en anglais)

- d'attributs (attributes)

- d'éléments (ce qui se trouve entre la balise ouvrante < et la balise fermante >).

Structure d'une page Web

Une page HTML est constituée au minimum :

- du doctype (pour indiquer au navigateur que le document est de type HTML)

- des balises qui elles-mêmen renferment 2 autres balises : et : ces 3 balises  sont les balises de premier niveau.

La section Head

La balise head renferme plusieurs balises qui sont interprétées par le navigateur, mais dont le contenu n'est pas affiché sur la page.

La section Head contient de nombreuses balises, parmi lesquelles nous trouvons : l'encodage de la page (le plus souvent UTF-8), le titre de la page (balise title) . On y trouve également des balises meta, des liens vers des feuilles de style CSS, et parfois des scripts en Javascript.

Les différentes balises meta et title jouent un rôle primordial pour le référencement.

La section Body

Elle contient au contraire tout ce qui sera affiché sur la page web dans le navigateur. Il existe de nombreux types de balises :

- les balises sectionnantes (permettant de diviser la page en plusieurs sections, comme header, nav, section, footer, article. Elles sont primordiales car elles donnent des indicationx aux moteurs de recherche qui parcourent les pages web).

- les balises de structuration du texte (comme les headings, les blockquotes, les paragraphes)

- les balises de listes (numérotées ou non)

- les balises de tableau (désormais déconseillées pour construire une page web, mais parfois très utiles pour construire le template d'une newsletter)

- les balises de formulaire (form, input, textarea...)

- les balises génériques (div, span...)

Mode d'affichage des éléments HTML

Il existe également une autre façon de distinguer certains types de balises.

On parle parfois en effet de :

- balises "inline" qui permettent de définir l'affichage d'un élément sans retour à la ligne. Parmi les balises inline, nous avons par exemple les balises  span, a, strong, img ...

- balises "blocks": elles occupent toute la largeur disponibles. Lorsque 2 éléments de type "blocks" se suivent, ils sont disposés par défaut l'un en dessous de l'autre. Nous avons par exemple les balises div, h1, p, ul, form, table, blockquote.

-de balises "invisibles" : elles ne s'affichent pas sur la page, comme par exemple la balise meta, inclue dans la partie head de la page.

Fonctionnalités
HTML permet d'écrire de l'hypertexte. Il permet de structurer sémantiquement et logiquement le contenu des pages web, mais aussi d'inclure des éléments multimédia tels que des images ou des vidéos.
Année de création
1992
Créateur
Web Hypertext Application Technology Working Group
Dernière version
5.2
Langage
HTML
Liens
Aux dernières nouvelles
Actuellement, la dernière version du HTML est le HTML 5. Mais les membres du groupe de travail du W3C veulent créer un HTML Living Standard, une version du HTML qui n'aurait pas de numéro de version. Ainsi le HTML serait en constante évolution.

19602 Commentaire(s)
  1. user
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    18/06/2026 à 19h45  commentaire modifé
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  2. user
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    18/06/2026 à 19h45  commentaire modifé
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  3. user
    luxury car rental miami_zwMn
    18/06/2026 à 19h45  commentaire modifé
    Been through enough garbage to last a lifetime. Then you actually go to pick up the car. Totally different vehicle waiting for you — check engine light on, curb rash on every rim, and that "tempting price"? Doesn't include the mandatory $35 daily toll pass or the $250 cleaning fee they sneak in at the end. Ten years in South Florida and these jokers still almost catch me slipping. luxury car for rent. anyone who's taken public transport here knows the struggle is real. South Beach night out, Bal Harbour shopping spree, or a spontaneous Keys adventure — AC must be ice cold and unlimited miles non-negotiable. most are shiny websites hiding the same beat-up fleet with fresh wax. no games, no bait-and-switch, no hidden fees in the fine print. Here's the only straight shooter for premium rides across South Florida miami south beach rental cars https://luxury-car-rental-miami-10.com also bring quality shades unless you enjoy driving into the sun like a vampire. Anyway glad there's at least one honest rental joint left in this town.

  4. user
    luxury car rental miami_klMn
    18/06/2026 à 19h45  commentaire modifé
    Been through enough garbage to last a lifetime. Then you actually go to pick up the car. Totally different vehicle waiting for you — check engine light on, curb rash on every rim, and that "tempting price"? Doesn't include the mandatory $35 daily toll pass or the $250 cleaning fee they sneak in at the end. Ten years in South Florida and these jokers still almost catch me slipping. miami luxury car rental. Miami without solid wheels is basically a punishment. leather seats that won't cook your back in the July heat. most are shiny websites hiding the same beat-up fleet with fresh wax. no games, no bait-and-switch, no hidden fees in the fine print. Here's the only straight shooter for premium rides across South Florida miami car rental https://luxury-car-rental-miami-10.com Yeah parking in Brickell will cost you a nice dinner — but that's just how it is down here. Anyway glad there's at least one honest rental joint left in this town.

  5. user
    luxury car rental miami_ecKl
    18/06/2026 à 19h44  commentaire modifé
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