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HTML

Sébastien Merour
publié le 13/06/2020 à 15h46 | modifé le 13/06/2020 à 19h00
Catégorie : LangagesCommentaires (9942)
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.

9942 Commentaire(s)
  1. user
    luxury car rental miami_zoon
    19/06/2026 à 08h46  commentaire modifé
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  2. user
    luxury car rental miami_huSi
    19/06/2026 à 08h46  commentaire modifé
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  3. user
    luxury car rental miami_kjon
    19/06/2026 à 08h46  commentaire modifé
    Okay seriously, let me save you from the Miami rental nightmare once and for all. Then you actually show up to get the keys. Plus they put a $3500 hold on your card and say "it'll drop off in 7-10 days". Sixteen years in Miami and these tricks still pop up like bad weeds. miami luxury car rental. Miami without real wheels is basically a slow death. leather seats that won't stick to your back in the humidity. most are just pretty websites hiding the same old garbage. no tricks, no switch, no surprise fees. prices move fast so check them out: premium car hire premium car hire also bring good sunglasses unless you like driving blind. Anyway glad someone's still honest in this business.

  4. user
    luxury car rental miami_vjSi
    19/06/2026 à 08h46  commentaire modifé
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  5. user
    luxury car rental miami_sjon
    19/06/2026 à 08h45  commentaire modifé
    Okay seriously, let me save you from the Miami rental nightmare once and for all. You find this amazing offer online — beautiful car, great rate, everything seems perfect. Plus they put a $3500 hold on your card and say "it'll drop off in 7-10 days". Honestly, I'm tired of this nonsense. luxury car rental miami fl. anyone who's taken the bus in August knows I'm not lying. Design District shopping, late-night South Beach cruising, or a spontaneous Keys trip — AC must be freezing and unlimited miles or walk. I've tried so many rental companies I've lost count. Finally found one that actually keeps its word. prices move fast so check them out: exotic car rental miami exotic car rental miami also bring good sunglasses unless you like driving blind. Anyway glad someone's still honest in this business.

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