Hướng dẫn trực tuyến CodeW3C
Hướng dẫn series HTML
瀏覽器腳本
伺服器脚本
Hướng dẫn lập trình
Hướng dẫn series XML
Sách hướng dẫn xây dựng trang web
Sách tham khảo
課程表
Sách tham khảo
HTML 元素（字母排序）
HTML 元素（功能排序）
HTML 浏览器支持
Tính chất toàn cục HTML
HTML 事件
Tên màu HTML
HTML 画布
HTML 视频/音频
Bộ ký tự HTML
HTML 文档类型
URL mã hóa HTML
HTML 语言代码
HTML 国家代码
HTTP 消息
HTTP 方法
Phím tắt bàn phím
HTML 标签
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<!DOCTYPE>
<a>
<abbr>
<acronym>
<address>
<applet>
<area>
<article>
<aside>
<audio>
<b>
<base>
<basefont>
<bdi>
<bdo>
<big>
<blockquote>
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</a></li> <li><a href="/vi/tags/tag_img.html" title="Thẻ <img> HTML"><img></a></li> <li><a href="/vi/tags/tag_input.html" title="Thẻ <input> HTML"><input></a></li> <li><a href="/vi/tags/tag_ins.html" title="Thẻ <ins> HTML"><ins></a></li> <li><a href="/vi/tags/tag_kbd.html" title="Thẻ <kbd> HTML"><kbd></a></li> <li><a href="/vi/tags/tag_label.html" title="Thẻ <label> HTML"><label></a></li> <li><a href="/vi/tags/tag_legend.html" title="Thẻ <legend> HTML"><legend></a></li> <li><a href="/vi/tags/tag_li.html" title="Thẻ <li> HTML"><li></a></li> <li><a href="/vi/tags/tag_link.html" title="Thẻ <link> HTML"><link></a></li> <li><a href="/vi/tags/tag_main.html" title="Thẻ <main> HTML"><main></a></li> <li><a href="/vi/tags/tag_map.html" title="Thẻ <map> HTML"><map></a></li> <li><a href="/vi/tags/tag_mark.html" title="Thẻ <mark> HTML"><mark></a></li> <li><a href="/vi/tags/tag_menu.html" title="Thẻ <menu> HTML"><menu></a></li> <li><a href="/vi/tags/tag_meta.html" title="Thẻ <meta> HTML"><meta></a></li> <li><a href="/vi/tags/tag_meter.html" title="Thẻ <meter> HTML"><meter></a></li> <li><a href="/vi/tags/tag_nav.html" title="Thẻ <nav> HTML"><nav></a></li> <li><a href="/vi/tags/tag_noframes.html" title="Thẻ <noframes> HTML"><noframes></a></li> <li><a href="/vi/tags/tag_noscript.html" title="Thẻ <noscript> HTML"><noscript></a></li> <li><a href="/vi/tags/tag_object.html" title="Thẻ <object> HTML"><object></a></li> <li><a href="/vi/tags/tag_ol.html" title="Thẻ <ol> HTML"><ol></a></li> <li><a href="/vi/tags/tag_optgroup.html" title="Thẻ <optgroup> HTML"><optgroup></a></li> <li><a href="/vi/tags/tag_option.html" title="Thẻ <option> HTML"><option></a></li> <li><a href="/vi/tags/tag_output.html" title="Thẻ <output> HTML"><output></a></li> <li><a href="/vi/tags/tag_p.html" title="Thẻ <p> HTML"><p></a></li> <li><a href="/vi/tags/tag_param.html" title="Thẻ <param> HTML"><param></a></li> <li><a href="/vi/tags/tag_picture.html" title="Thẻ <picture> HTML"><picture></a></li> <li><a href="/vi/tags/tag_pre.html" title="Thẻ <pre> HTML"><pre></a></li> <li><a href="/vi/tags/tag_progress.html" title="Thẻ <progress> HTML"><progress></a></li> <li><a href="/vi/tags/tag_q.html" title="Thẻ <q> HTML"><q></a></li> <li><a href="/vi/tags/tag_rp.html" title="Thẻ <rp> HTML"><rp></a></li> <li><a href="/vi/tags/tag_rt.html" title="Thẻ <rt> HTML"><rt></a></li> <li><a href="/vi/tags/tag_ruby.html" title="Thẻ <ruby> HTML"><ruby></a></li> <li><a href="/vi/tags/tag_s.html" title="Thẻ <s> HTML"><s></a></li> <li><a href="/vi/tags/tag_samp.html" title="Thẻ <samp> HTML"><samp></a></li> <li><a href="/vi/tags/tag_script.html" title="Thẻ <script> HTML"><script></a></li> <li><a href="/vi/tags/tag_search.html" title="Thẻ <search> HTML"><search></a></li> <li><a href="/vi/tags/tag_section.html" title="Thẻ <section> HTML"><section></a></li> <li><a href="/vi/tags/tag_select.html" title="Thẻ <select> HTML"><select></a></li> <li><a href="/vi/tags/tag_small.html" title="Thẻ <small> HTML"><small></a></li> <li><a href="/vi/tags/tag_source.html" title="Thẻ <source> HTML"><source></a></li> <li><a href="/vi/tags/tag_span.html" title="Thẻ <span> HTML"><span></a></li> <li><a href="/vi/tags/tag_strike.html" title="Thẻ <strike> HTML"><strike></a></li> <li><a href="/vi/tags/tag_strong.html" title="Thẻ <strong> HTML"><strong></a></li> <li><a href="/vi/tags/tag_style.html" title="Thẻ <style> HTML"><style></a></li> <li><a href="/vi/tags/tag_sub.html" title="HTML <sub> thẻ"><sub></a></li> <li><a href="/vi/tags/tag_summary.html" title="HTML <summary> thẻ"><summary></a></li> <li><a href="/vi/tags/tag_sup.html" title="HTML <sup> thẻ"><sup></a></li> <li><a href="/vi/tags/tag_svg.html" title="HTML <svg> thẻ"><svg></a></li> <li><a href="/vi/tags/tag_table.html" title="HTML <table> thẻ"><table></a></li> <li><a href="/vi/tags/tag_tbody.html" title="HTML <tbody> thẻ"><tbody></a></li> <li><a href="/vi/tags/tag_td.html" title="HTML <td> thẻ"><td></a></li> <li><a href="/vi/tags/tag_template.html" title="HTML <template> thẻ"><template></a></li> <li><a href="/vi/tags/tag_textarea.html" title="HTML <textarea> thẻ"><textarea></a></li> <li><a href="/vi/tags/tag_tfoot.html" title="HTML <tfoot> thẻ"><tfoot></a></li> <li><a href="/vi/tags/tag_th.html" title="HTML <th> thẻ"><th></a></li> <li><a href="/vi/tags/tag_thead.html" title="HTML <thead> thẻ"><thead></a></li> <li><a href="/vi/tags/tag_time.html" title="HTML <time> thẻ"><time></a></li> <li><a href="/vi/tags/tag_title.html" title="HTML <title> thẻ"><title></a></li> <li><a href="/vi/tags/tag_tr.html" title="HTML <tr> thẻ"><tr></a></li> <li><a href="/vi/tags/tag_track.html" title="HTML <track> thẻ"><track></a></li> <li><a href="/vi/tags/tag_tt.html" title="HTML <tt> thẻ"><tt></a></li> <li><a href="/vi/tags/tag_u.html" title="HTML <u> thẻ"><u></a></li> <li><a href="/vi/tags/tag_ul.html" title="HTML <ul> thẻ"><ul></a></li> <li><a href="/vi/tags/tag_var.html" title="HTML <var> thẻ"><var></a></li> <li><a href="/vi/tags/tag_video.html" title="HTML <video> thẻ"><video></a></li> <li><a href="/vi/tags/tag_wbr.html" title="HTML <wbr> thẻ"><wbr></a></li> </ul> </div> <div><h3><center> 选修课 </center><h3> <h2>课程推荐：</h2> <ul> <li><a href="/vi/howto/index.html" title="Bộ công cụ CodeW3C.com">Bộ công cụ CodeW3C.com</a></li> </ul> </div> </div> <div id="maincontent"> <div class="idea"> <a href="/"><button>English</button></a> <a href="/zh/"><button>中文</button></a> <a href="/oldzh/"><button>繁體中文</button></a> <a href="/ru/"><button>Русский</button></a> <a href="/fr/"><button>Français</button></a> <a href="/de/"><button>Deutsch</button></a> <a href="/es/"><button>Español</button></a> <a href="/pt/"><button>Português</button></a> <a href="/ja/"><button>日本語</button></a> <a href="/ko/"><button>한국어</button></a> <a href="/it/"><button>Italiano</button></a> <a href="/ar/"><button>عربي</button></a> <a href="/hi/"><button>हिंदी</button></a> <a href="/bn/"><button>বাংলা</button></a> <a href="/ms/"><button>Bahasa Malaysia</button></a> <a href="/my/"><button>မြန်မာ</button></a> <a href="/vi/"><button>Tiếng Việt</button></a> <a href="/th/"><button>ภาษาไทย</button></a> <a href="/lo/"><button>ລາວ</button></a> <a href="/id/"><button>Bahasa Indonesia</button></a> <a href="/ur/"><button>اردو</button></a> <a href="/ha/"><button>Hausa</button></a> <a href="/pl/"><button>Język polski</button></a> <a href="/pa/"><button>ਪੰਜਾਬੀ</button></a> <a href="/sv/"><button>Svenska</button></a> <a href="/da/"><button>Dansk</button></a> <a href="/nl/"><button>Nederlands</button></a> <a href="/tr/"><button>Türkçe</button></a> <a href="/fi/"><button>suom.</button></a> <a href="/el/"><button>Ελληνικά</button></a> <a href="/fa/"><button>فارسی</button></a> <a href="/sw/"><button>Kiswahili</button></a> <a href="/te/"><button>తెలుగు</button></a> <a href="/tl/"><button>wikang Galu</button></a> </div> <h1>HTML <input> form 属性</h1> <div class="backtoreference"> <p><a href="/vi/tags/tag_input.html">Thẻ <input> HTML</a></p> </div> <div> <h2>定义和用法</h2> <p><code>form</code> 属性规定 <input> 元素所属的表单。</p> </div> <div> <h2>实例</h2> <p>位于 HTML 表单之外的输入字段（但仍然是表单的一部分）：</p> <pre class="language-html"> <form action="/action_page.php" id="form1"> <label for="fname">Tên:</label> <input type="text" id="fname" name="fname"><br><br> <input type="submit" value="Gửi"> </form> <label for="lname">Họ:</label> <input type="text" id="lname" name="lname" form="form1"> </pre> <p class="tiy"><a target="_blank" href="/vi/tiy/t.html?f=tag_input_form">Thử ngay</a></p> </div> <div> <h2>Cú pháp</h2> <pre class="language-html"> <input form="<i>form_id</i>"> </pre> <h3>Giá trị thuộc tính</h3> <table class="dataintable"> <tr> <th style="width: 20%;">Giá trị</th> <th>Mô tả</th> </tr> <tr> <td><i>form_id</i></td> <td> <p>Định nghĩa thẻ <input> thuộc về thẻ元素 của biểu mẫu.</p> <p>Giá trị của thuộc tính này phải bằng với thuộc tính id của thẻ <form> trong cùng một tài liệu.</p> </td> </tr> </table> </div> <div> <h2>Hỗ trợ trình duyệt</h2> <table class="browser-support"> <tr> <th class="bsChrome">Chrome</th> <th class="bsEdge">Edge</th> <th class="bsFirefox">Firefox</th> <th class="bsSafari">Safari</th> <th class="bsOpera">Opera</th> </tr> <tr> <td>Chrome</td> <td>Edge</td> <td>Firefox</td> <td>Safari</td> <td>Opera</td> </tr> <tr> <td>Hỗ trợ</td> <td>Hỗ trợ</td> <td>Hỗ trợ</td> <td>5.1</td> <td>10.6</td> </tr> </table> </div> <div class="backtoreference"> <p><a href="/vi/tags/tag_input.html">Thẻ <input> HTML</a></p> </div><div style="background-color:#fcfdf8; padding:0;"> </div> </div> <!-- maincontent end --> <div id="sidebar"> <div><h3><center> Công cụ </center><h3> <h5 id="tools_reference"><a href="/vi/tags/index.html">Tài liệu tham khảo HTML</a></h5> <h5 id="tools_example"><a href="/vi/html/html_examples.html">Mẫu HTML</a></h5> <h5 id="tools_quiz"><a href="/vi/html/html_quiz.html">Kiểm tra HTML</a></h5> <h5 id="tools_tutorial"><a href="/vi/html/index.html">Hướng dẫn HTML</a></h5> </div> 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