(à traduire)
Les éléments racines fournissent les conteneurs qui renferment tous les autres éléments HTML. Chaque page HTML contient ces éléments. Les balises environnantes peuvent être omises. Cependant, si cela est fait, certains utilitaires peuvent ne pas reconnaître ou manipuler correctement le document.
…
en pour Anglais). Le seul contenu autorisé pour un élément HTML est soit un élément head et un élément body, soit un élément head élément et un élément frameset élément.…
head élément contient principalement les métadonnées pour le document. Il y a sept éléments d'en-tête possibles qui incluent un meta élément pour une spécification extensible des métadonnées.…
Ces éléments racines sont organisés comme suit :
base et title qui ne peuvent apparaître qu'une seule fois chacun. Le seul élément obligatoire de l'en-tête (délimitée entre les balises et ) est : </code>.</dd> </dl> </dd> <dd></head></dd> <dd><body></dd> </dl> </dd> </dl> <p>Ne peut avoir comme enfants directs que des éléments de type <i>%block</i> en HTML strict, mais admet également des éléments de type <i>%inline</i> ou du texte anonyme en HTML transitionnel.</p>
<dl> <dd> <dl> <dd></body></dd> </dl> </dd> <dd></html></dd> </dl><h2 id="ref_4">Niveau ligne</h2>
<h3> <span class="mw-headline" id="Expression_g.C3.A9n.C3.A9rale">Expression générale</span></h3> <h3> <span class="mw-headline" id="Expression_de_code_informatique">Expression de code <span class='lienGlossaire'><a href='https://www.techno-science.net/glossaire-definition/Informatique.html'>informatique</a></span></span></h3> <h3> <span class="mw-headline" id=".C3.89l.C3.A9ments_sp.C3.A9ciaux_de_niveau_ligne">Éléments spéciaux de niveau ligne</span></h3> <h3> <span class="mw-headline" id="Liens">Liens</span></h3> <p>Les liens, ou hyperliens, sont l'un des éléments les plus basiques et importants.</p>
<p>Le code pour insérer un lien est simple :</p>
<pre> <a >Ceci est un lien</a> </pre> <p>La balise ouvrante est <a >. La balise fermante est </a>. Entre les guillemets, vous indiquez l'url complète du lien sauf dans un certain cas que nous verrons après. L'url complète, cela veut dire que vous insérez ce qui s'affiche dans la barre d'<span class='lienGlossaire'><a href='https://www.techno-science.net/definition/10558.html'>adresse</a></span> lorsque vous naviguez sur la page en question. Peu importe le site vers lequel vous voulez porter un lien, cette technique fonctionnera <i>toujours</i>. Exemple d'url :</p>
<p>http://fr.wikipedia.org/wiki/Hypertext_Markup_Language</p>
<p>Ce qui nous donne, en code:</p>
<pre> <a >L'article de Wikipédia sur le html</a> </pre> <h3> <span class="mw-headline" id="Images_et_objets">Images et objets</span></h3> <p><b><img></b><br > <i>utilisation:</i></p>
<pre> </pre> <p><br > La balise image est associée à une URL source via l'attribut "src". Autrement dit, vous insérez le chemin d'accès à l'image entre les "" pour définir l'image à insérer.</p>
<p>On peut modifier d'autres propriétés de l'image avec les attributs suivants:</p>
<pre> width="150" </pre> <p><br > règle la largeur de l'image sur 150 pixels.</p>
<pre> height="150" </pre> <p><br > règle la hauteur de l'image sur 150 pixels.</p>
<pre> border="4" </pre> <p><br > affiche une bordure de 4 pixels autour de l'image. On peut modifier la couleur de cette bordure avec l'attribut bordercolor="red", par exemple.</p>
<pre> alt"<span class='lienGlossaire'><a href='https://www.techno-science.net/definition/4217.html'>Message</a></span>" </pre> <p><br > insère un message alternatif qui sera affiché lorsque l'on laisse la souris sur l'image.</p>
<pre> align="left" </pre> <p><br > place l'image à gauche.</p>
<pre> hspace="10" </pre> <p><br > laisse une marge horizontale de 10 pixels entre l'image et le reste de la page.</p>
<pre> vspace="10" </pre> <p><br > laisse une marge verticale de 10 pixels entre l'image et le reste de la page.</p>
<pre> lowsrc="image réduite.jpg" </pre> <p><br > cette balise fait afficher au navigateur une autre image le temps que la vraie image soit chargée. Cet attribut est principalement utilisé pour les grosses images.</p>
<h3> <span class="mw-headline" id=".3Cspan.3E....3C.2Fspan.3E"><span>...</span></span></h3> <p>Balise générique <i>inline</i> qui n'a pas de signification particulière. Syntaxe :</p>
<pre> La voiture <span style="color:rgb(255,0,0)"><span class='lienGlossaire'><a href='https://www.techno-science.net/definition/7264.html'>rouge</a></span></span>. </pre> <p>affichera : La voiture <span style="color:rgb(255,0,0)">rouge</span>.</p>
<p><br > Elle est généralement utilisée pour décorer une phrase ou un groupe de mots. Elle va de pair avec la balise <div>...</div> qui elle est de type <i>block</i>.</p>
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<div class="naviguation"><div class="naviguationPrecedent"><a href="https://www.techno-science.net/glossaire-definition/Element-HTML.html">Éléments d'en-tête</a></div> <div class="naviguationSuivant"><a href="https://www.techno-science.net/glossaire-definition/Element-HTML-page-3.html">Bloc</a></div></div><div class="blocSommaire blocSommaireBas"><div class="listeSommaire"><a href="https://www.techno-science.net/glossaire-definition/Element-HTML.html"> - Introduction</a><a href="https://www.techno-science.net/glossaire-definition/Element-HTML.html#ref_1"> - Niveau bloc et niveau texte</a><a href="https://www.techno-science.net/glossaire-definition/Element-HTML.html#ref_2"> - Éléments d'en-tête</a><a href="https://www.techno-science.net/glossaire-definition/Element-HTML-page-2.html"> - Éléments du document</a><a href="https://www.techno-science.net/glossaire-definition/Element-HTML-page-2.html#ref_4"> - Niveau ligne</a><a href="https://www.techno-science.net/glossaire-definition/Element-HTML-page-3.html"> - Bloc</a><a href="https://www.techno-science.net/glossaire-definition/Element-HTML-page-3.html#ref_7"> - Jeu de cadres</a></div></div></div>
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