-
Notifications
You must be signed in to change notification settings - Fork 7
Expand file tree
/
Copy patharea.html
More file actions
368 lines (321 loc) · 20.2 KB
/
area.html
File metadata and controls
368 lines (321 loc) · 20.2 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
<!DOCTYPE html>
<html lang="pt-BR">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Tag <area></title>
<link rel="stylesheet" href="utils/css/global.css">
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap" rel="stylesheet">
</head>
<body>
<header>
<nav>
<div class="logo">Tags HTML</div>
<ul class="nav-links">
<li><a href="index.html">Home</a></li>
<li><a href="referencias.html">Referências</a></li>
<li><a href="sobre.html">Sobre Nós</a></li>
</ul>
</nav>
</header>
<main>
<article class="main-content">
<section class="title-section">
<section class="title-section-tag">
<h1>Tag HTML <area></h1>
</section>
</section>
<p class="subtitle">A tag usada para definir áreas clicáveis dentro de uma imagem mapeada no HTML.</p>
<section class="content">
<section class="example-section">
<h3>Exemplo</h3>
<p>No exemplo abaixo, criamos uma imagem com áreas clicáveis definidas por coordenadas dentro de um mapa de imagem:</p>
<div class="code-block">
<pre>
<img src="planeta.jpg" alt="Mapa dos planetas" usemap="#planetmap">
<map name="planetmap">
<area shape="circle" coords="180,139,60" href="mercurio.html" alt="Mercúrio">
<area target="_blank" alt="sol" title="sol" href="https://en.wikipedia.org/wiki/Sun" coords="246,246,73" shape="circle">
<area target="_blank" alt="saturno" title="saturno" href="https://en.wikipedia.org/wiki/Saturn" coords="97,313,33" shape="circle">
<area target="_blank" alt="urano" title="urano" href="https://en.wikipedia.org/wiki/Uranus" coords="195,394,28" shape="circle">
<area target="_blank" alt="netuno" title="netuno" href="https://en.wikipedia.org/wiki/Neptune" coords="312,391,31" shape="circle">
<area target="_blank" alt="jupiter" title="jupiter" href="https://en.wikipedia.org/wiki/Jupiter" coords="406,287,50" shape="circle">
<area target="_blank" alt="terra" title="terra" href="https://en.wikipedia.org/wiki/Earth" coords="263,93,25" shape="circle">
<area target="_blank" alt="venus" title="venus" href="https://en.wikipedia.org/wiki/Venus" coords="143,118,19" shape="circle">
<area target="_blank" alt="marte" title="marte" href="https://en.wikipedia.org/wiki/Mars" coords="386,164,21" shape="circle">
<area target="_blank" alt="mercurio" title="mercurio" href="https://en.wikipedia.org/wiki/Mercury_(planet)" coords="97,213,14" shape="circle">
</map>
</pre>
</div>
<p>Neste exemplo, cada <code><area></code> representa uma parte clicável diferente da imagem.</p>
<h4>Output</h4>
<img src="utils/imgs/planeta.jpg" alt="Mapa dos planetas" usemap="#planetmap" height="100%" width="500">
<map name="planetmap">
<area target="_blank" alt="sol" title="sol" href="https://en.wikipedia.org/wiki/Sun" coords="246,246,73" shape="circle">
<area target="_blank" alt="saturno" title="saturno" href="https://en.wikipedia.org/wiki/Saturn" coords="97,313,33" shape="circle">
<area target="_blank" alt="urano" title="urano" href="https://en.wikipedia.org/wiki/Uranus" coords="195,394,28" shape="circle">
<area target="_blank" alt="netuno" title="netuno" href="https://en.wikipedia.org/wiki/Neptune" coords="312,391,31" shape="circle">
<area target="_blank" alt="jupiter" title="jupiter" href="https://en.wikipedia.org/wiki/Jupiter" coords="406,287,50" shape="circle">
<area target="_blank" alt="terra" title="terra" href="https://en.wikipedia.org/wiki/Earth" coords="263,93,25" shape="circle">
<area target="_blank" alt="venus" title="venus" href="https://en.wikipedia.org/wiki/Venus" coords="143,118,19" shape="circle">
<area target="_blank" alt="marte" title="marte" href="https://en.wikipedia.org/wiki/Mars" coords="386,164,21" shape="circle">
<area target="_blank" alt="mercurio" title="mercurio" href="https://en.wikipedia.org/wiki/Mercury_(planet)" coords="97,213,14" shape="circle">
</map>
<p>Experimente clicar em um dos planetas da imagem.</p>
</section>
<section class="example-section">
<h3>Definição e uso</h3>
<p>A tag <code><area></code> define uma região interativa dentro de um mapa de imagem (<code><map></code>).
Essas áreas permitem criar links em partes específicas de uma imagem, como em um diagrama, mapa geográfico ou infográfico.</p>
<p>Cada <code><area></code> é definida por coordenadas que especificam sua posição e formato dentro da imagem.
Ela deve estar sempre dentro de um elemento <code><map></code> e associada a uma imagem por meio do atributo usemap.</p>
</section>
<section class="example-section">
<h3>Atributos</h3>
<table class="attributes-table">
<thead>
<tr>
<th>Atributo</th>
<th>Valor</th>
<th>Descrição</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>alt</code></td>
<td>Texto alternativo</td>
<td>Descreve a área; importante para acessibilidade.</td>
</tr>
<tr>
<td><code>coords</code></td>
<td>Lista de números</td>
<td>Define as coordenadas que determinam a posição e o formato da área dentro da imagem.</td>
</tr>
<tr>
<td><code>download</code></td>
<td>Nome do arquivo</td>
<td>Indica que o link deve fazer download do destino em vez de abri-lo.</td>
</tr>
<tr>
<td><code>href</code></td>
<td>URL</td>
<td>Define o destino do link ao clicar na área.</td>
</tr>
<tr>
<td><code>hreflang</code></td>
<td>Código de idioma</td>
<td>Indica o idioma do documento de destino.</td>
</tr>
<tr>
<td><code>media</code></td>
<td>Media query</td>
<td>Define para quais dispositivos ou condições de mídia o link é otimizado.</td>
</tr>
<tr>
<td><code>referrerpolicy</code></td>
<td><code>no-referrer</code>, <code>origin</code>, <code>same-origin</code>, etc.</td>
<td>Controla quais informações de referência (referrer) são enviadas ao acessar o link.</td>
</tr>
<tr>
<td><code>rel</code></td>
<td>Tipo de relação</td>
<td>Define a relação entre o documento atual e o destino do link.</td>
</tr>
<tr>
<td><code>shape</code></td>
<td><code>rect</code>, <code>circle</code>, <code>poly</code>, <code>default</code></td>
<td>Define o formato da área clicável.</td>
</tr>
<tr>
<td><code>target</code></td>
<td><code>_blank</code>, <code>_self</code>, etc.</td>
<td>Especifica onde abrir o link.</td>
</tr>
<tr>
<td><code>type</code></td>
<td>Tipo MIME.</td>
<td>Define o tipo de mídia (MIME type) do recurso de destino.</td>
</tr>
</tbody>
</table>
</section>
<section class="example-section">
<h3>Boas Práticas e Observações</h3>
<ul>
<li><strong>Uso Correto:</strong> Sempre use <code><area></code> dentro de um <code><map></code>.</li>
<li><strong>Acessibilidade:</strong> Forneça sempre o atributo <code><alt></code> para descrever a área.</li>
<li><strong>Coordenadas:</strong> Ajuste as coordenadas de acordo com o tamanho real da imagem. Se a imagem for redimensionada via CSS, o mapeamento pode perder a precisão.</li>
<li><strong>Forma adequada:</strong> Use <code>shape="rect"</code> para retângulos, <code>shape="circle"</code> para círculos e <code>shape="poly"</code> para formas irregulares.</li>
<li><strong>SEO e usabilidade:</strong> Evite usar apenas imagens mapeadas como meio principal de navegação; ofereça alternativas textuais.</li>
</ul>
</section>
<section class="example-section">
<h3>Outros exemplos</h3>
<p class="subtitle">Veja alguns usos práticos da tag <code><area></code>:</p>
<h4>Exemplo 1: Área retangular</h4>
<div class="code-block">
<pre><area shape="rect" coords="34,44,270,350" href="produto.html" alt="Produto"></pre>
</div>
<h4>Output</h4>
<p>Cria uma área clicável retangular na imagem.</p>
<hr>
<h4>Exemplo 2: Área circular</h4>
<div class="code-block">
<pre><area shape="circle" coords="180,139,60" href="informacoes.html" alt="Informações"></pre>
</div>
<h4>Output</h4>
<p>Cria uma área clicável circular com raio de 60 pixels.</p>
<hr>
<h4>Exemplo 3: Área poligonal</h4>
<div class="code-block">
<pre><area shape="poly" coords="140,121,181,116,204,164,121,198" href="setor.html" alt="Setor do mapa"></pre>
</div>
<h4>Output</h4>
<p>Cria uma área clicável com formato personalizado de acordo com os pontos definidos.</p>
</section>
</article>
<aside class="sidebar">
<h2>Outras Tags HTML</h2>
<input type="text" id="searchInput" placeholder="Pesquisar tag..." class="btn search-box">
<ul class="sidebar-links" id="tagList">
<li><a href="canvas.html"><canvas></a></li>
<li><a href="fieldset.html"><fieldset></a></li>
<li><a href="legend.html"><legend></a></li>
<li><a href="picture.html"><picture></a></li>
<li><a href="sub.html"><sub></a></li>
<li><a href="var.html"><var></a></li>
<li><a href="base.html"><base></a></li>
<li><a href="dfn.html"><dfn></a></li>
<li><a href="i.html"><i></a></li>
<li><a href="object.html"><object></a></li>
<li><a href="section.html"><section></a></li>
<li><a href="thead.html"><thead></a></li>
<li><a href="a.html"><a></a></li>
<li><a href="code.html"><code></a></li>
<li><a href="footer.html"><footer></a></li>
<li><a href="main.html"><main></a></li>
<li><a href="q.html"><q></a></li>
<li><a href="svg.html"><svg></a></li>
<li><a href="audio.html"><audio></a></li>
<li><a href="del.html"><del></a></li>
<li><a href="hr.html"><hr></a></li>
<li><a href="nav.html"><nav></a></li>
<li><a href="script.html"><script></a></li>
<li><a href="tfoot.html"><tfoot></a></li>
<li><a href="article.html"><article></a></li>
<li><a href="datalist.html"><datalist></a></li>
<li><a href="header.html"><header></a></li>
<li><a href="meta.html"><meta></a></li>
<li><a href="s.html"><s></a></li>
<li><a href="template.html"><template></a></li>
<li><a href="body.html"><body></a></li>
<li><a href="dt.html"><dt></a></li>
<li><a href="ins.html"><ins></a></li>
<li><a href="output.html"><output></a></li>
<li><a href="span.html"><span></a></li>
<li><a href="track.html"><track></a></li>
<li><a href="abbr.html"><abbr></a></li>
<li><a href="col.html"><col></a></li>
<li><a href="form.html"><form></a></li>
<li><a href="map.html"><map></a></li>
<li><a href="rp.html"><rp></a></li>
<li><a href="table.html"><table></a></li>
<li><a href="doctype.html"><!DOCTYPE></a></li>
<li><a href="cite.html"><cite></a></li>
<li><a href="figure.html"><figure></a></li>
<li><a href="link.html"><link></a></li>
<li><a href="progress.html"><progress></a></li>
<li><a href="sup.html"><sup></a></li>
<li><a href="wbr.html"><wbr></a></li>
<li><a href="area.html"><area></a></li>
<li><a href="data.html"><data></a></li>
<li><a href="head.html"><head></a></li>
<li><a href="menu.html"><menu></a></li>
<li><a href="ruby.html"><ruby></a></li>
<li><a href="td.html"><td></a></li>
<li><a href="button.html"><button></a></li>
<li><a href="embed.html"><embed></a></li>
<li><a href="label.html"><label></a></li>
<li><a href="param.html"><param></a></li>
<li><a href="style.html"><style></a></li>
<li><a href="ul.html"><ul></a></li>
<li><a href="br.html"><br></a></li>
<li><a href="em.html"><em></a></li>
<li><a href="kbd.html"><kbd></a></li>
<li><a href="p.html"><p></a></li>
<li><a href="strong.html"><strong></a></li>
<li><a href="u.html"><u></a></li>
<li><a href="blockquote.html"><blockquote></a></li>
<li><a href="dl.html"><dl></a></li>
<li><a href="input.html"><input></a></li>
<li><a href="option.html"><option></a></li>
<li><a href="source.html"><source></a></li>
<li><a href="tr.html"><tr></a></li>
<li><a href="bdi.html"><bdi></a></li>
<li><a href="dialog.html"><dialog></a></li>
<li><a href="iframe.html"><iframe></a></li>
<li><a href="ol.html"><ol></a></li>
<li><a href="select.html"><select></a></li>
<li><a href="time.html"><time></a></li>
<li><a href="bdo.html"><bdo></a></li>
<li><a href="div.html"><div></a></li>
<li><a href="img.html"><img></a></li>
<li><a href="optgroup.html"><optgroup></a></li>
<li><a href="small.html"><small></a></li>
<li><a href="title.html"><title></a></li>
<li><a href="b.html"><b></a></li>
<li><a href="details.html"><details></a></li>
<li><a href="html.html"><html></a></li>
<li><a href="noscript.html"><noscript></a></li>
<li><a href="search.html"><search></a></li>
<li><a href="th.html"><th></a></li>
<li><a href="aside.html"><aside></a></li>
<li><a href="dd.html"><dd></a></li>
<li><a href="hgroup.html"><hgroup></a></li>
<li><a href="meter.html"><meter></a></li>
<li><a href="samp.html"><samp></a></li>
<li><a href="textarea.html"><textarea></a></li>
<li><a href="address.html"><address></a></li>
<li><a href="colgroup.html"><colgroup></a></li>
<li><a href="h1.html"><h1></a></li>
<li><a href="h2.html"><h2></a></li>
<li><a href="h3.html"><h3></a></li>
<li><a href="h4.html"><h4></a></li>
<li><a href="h5.html"><h5></a></li>
<li><a href="h6.html"><h6></a></li>
<li><a href="mark.html"><mark></a></li>
<li><a href="rt.html"><rt></a></li>
<li><a href="tbody.html"><tbody></a></li>
<li><a href="comment.html"><!--...--></a></li>
<li><a href="caption.html"><caption></a></li>
<li><a href="figcaption.html"><figcaption></a></li>
<li><a href="li.html"><li></a></li>
<li><a href="pre.html"><pre></a></li>
<li><a href="summary.html"><summary></a></li>
<li><a href="video.html"><video></a></li>
</ul>
</aside>
</main>
<footer>
<p>Copyright © 2025 Tutorial HTML5</p>
<p><a href="index.html">Home</a> | <a href="sobre.html">Sobre Nós</a> | <a
href="referencias.html">Referências</a>
</p>
</footer>
</body>
</html>
<script>
const searchInput = document.getElementById('searchInput');
const tagList = document.getElementById('tagList');
const items = tagList.getElementsByTagName('li');
searchInput.addEventListener('keyup', function () {
const filter = this.value.toLowerCase();
for (let i = 0; i < items.length; i++) {
const link = items[i].getElementsByTagName('a')[0];
const text = link.textContent.toLowerCase();
items[i].style.display = text.includes(filter) ? '' : 'none';
}
});
</script>