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\nUser Name : <\/label>
\n
\nPassword : <\/label>
\n

\n

\n<\/form>\n<\/div>\n

Registration Form<\/h4>\n\nFirst Name<\/label>
\n
\nLast Name<\/label>
\n
\nEmail_ID<\/label>
\n
\nContact No<\/label>
\n
\nAddress<\/label>
\n

\n

\n<\/form>\n<\/div>\n<\/body>\n<\/html><\/pre>\n

輸出：<\/strong><\/p>\n

$\"HTML$ <\/p>\n

示例#2<\/h4>\n
在此示例中，我們將了解如何更改占位符的顏色。<\/p>\n
代碼：<\/strong><\/p>\n
\n\n\nPlaceholder Color Demo<\/title>\n<\/head>\n<style>\n::placeholder{\ncolor: coral;\n}\n<\/style>\n<body> <h1><a href="http://miracleart.cn/">国产av日韩一区二区三区精品,成人性爱视频在线观看,国产,欧美,日韩,一区,www.成色av久久成人,2222eeee成人天堂</a></h1>\n<center>\n<h3> Changing Color of Placeholder <\/h3>\n<h5>Enter Course Details Here<\/h5>\n<form action=\"#\">\n<input type=\"text\" name=\"cname\" placeholder=\"Course Name\">\n<br> <br>\n<input type=\"text\" name=\"duration\" placeholder=\"Course Durations\n(in Months)\">\n<br> <br>\n<textarea placeholder=\"Course Details (Syllabus)\"><\/textarea>\n<br><br>? <input type=\"submit\" value=\"Get Details\">\n<\/form>\n<\/center>\n<\/body>\n<\/html><\/pre>\n<p><strong>輸出：<\/strong><\/p>\n\n\n<p><img src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172544006863390.png\" alt=\"HTML 輸入占位符\" ><\/p>\n<h4>示例 #3<\/h4>\n<p>這是 HTML 占位符的又一個示例，它也適用于輸入字段以及文本區(qū)域。<\/p>\n<p><strong>代碼：<\/strong><\/p>\n<pre><html>\n<head>\n<title>HTML Placeholder<\/title>\n<\/head>\n<body>\n<form >\n<table border=\"2\" align=\"center\" width=\"500\" bgcolor=\"lightblue\" >\n<caption><b>We help jobseeker for getting better Jobs!<\/b><\/caption>\n<tr>\n<th>Enter First Name<\/th>\n<td><input type=\"text\" name=\"fn\" placeholder=\"John\" required\/><\/td>\n<\/tr>\n<tr>\n<th>Enter Last Name<\/th>\n<td><input type=\"text\" placeholder=\"Smith\" required\/ ><\/td>\n<\/tr>\n<tr>\n<th>Enter Email ID<\/th>\n<td><input type=\"email\" placeholder=\"[email protected]\" required\/><\/td>\n<\/tr>\n<tr>\n<th>Enter? Password<\/th>\n<td><input type=\"password\" placeholder=\"JSJS123\" required\/><\/td>\n<\/tr>\n<tr>\n<th>Confirm Password<\/th>\n<td><input type=\"password\" placeholder=\"JSJS123\" required\/><\/td>\n<\/tr>\n<tr>\n<th>Enter Mobile Number<\/th>\n<td><input type=\"number\" placeholder=\"9867986798\" required\/><\/td>\n<\/tr>\n<tr>\n<th>Select Date of Birth<\/th>\n<td><input type=\"date\" placeholder=\"30-04-1994\"\/><\/td>\n<\/tr>\n<tr>\n<th>Enter City<\/th>\n<td><input type=\"city\" placeholder=\"Eg. Pune\"\/><\/td>\n<\/tr>\n<tr>\n<th>Enter Address<\/th>\n<td><textarea rows=\"3\" cols=\"20\" placeholder=\"Enter address details\"><\/textarea><\/td>\n<\/tr>\n<tr>\n<th>Select Gender<\/th>\n<td>\nmale<input type=\"radio\" name=\"g\" \/>\nfemale<input type=\"radio\" name=\"g\" \/>\nother<input type=\"radio\" name=\"o\"\/>\n<\/td>\n<\/tr>\n<tr>\n<th>Position Applied for<\/th>\n<td>\n<select name=\"position\">\n<option value=\"\" selected=\"selected\" disabled=\"disabled\">Select Position<\/option>\n<option value=\"1\">.NET Developer<\/option>\n<option value=\"2\">UX-UI Designer<\/option>\n<option value=\"3\">Full Stack Developer<\/option>\n<option value=\"4\">Digital Marketing<\/option>\n<\/select>\n<\/td>\n<\/tr>\n<tr>\n<th>Additional skills or Certifications<\/th>\n<td><textarea rows=\"5\" cols=\"20\" placeholder=\"Enter your master skills as well as certification you completed\"><\/textarea><\/td>\n<\/tr>\n<tr>\n<th>Upload Resume Here<\/th>\n<td><input type=\"file\"\/ ><\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\" align=\"center\"><input type=\"submit\" value=\"Save Details\"\/>\n<input type=\"reset\" value=\"Reset Details\"\/>\n<\/td>\n<\/tr>\n<\/table>\n<\/form>\n<\/body>\n<\/html><\/pre>\n<p><strong>輸出：<\/strong><\/p>\n<p><img src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172544007059734.png\" alt=\"HTML 輸入占位符\" ><\/p>\n<p><strong>結(jié)論<\/strong><\/p>\n<p>從以上信息來看，我們可以說 HTML 占位符只不過是輸入字段（如文本輸入字段或文本區(qū)域）中的一種相關(guān)文本、建議或提示。因此，用戶可以輕松地從占位符中捕獲內(nèi)容，并在輸入字段中提供適當(dāng)?shù)妮斎搿?\/p>"} </script> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head> <body data-commit-time="2023-12-28T14:50:12+08:00" class="editor_body body2_2"> <link rel="stylesheet" type="text/css" href="/static/csshw/stylehw.css"> <header> <div id="377j5v51b" class="head"> <div id="377j5v51b" class="haed_left"> <div id="377j5v51b" 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placeholder="Block,address,transaction,news" value=""> <a href="javascript:;" title="搜索" onclick="searchs('zh')"><img src="/static/imghw/find.png" alt="搜索"></a> </div> <div id="377j5v51b" class="head_right"> <div id="377j5v51b" class="haed_language"> <a href="javascript:;" class="layui-btn haed_language_btn">簡體中文<i class="layui-icon layui-icon-triangle-d"></i></a> <div class="377j5v51b" id="dropdown-template" style="display: none;"> <div id="377j5v51b" class="languagechoose"> <a href="javascript:;" title="簡體中文" class="languagechoosea">簡體中文</a> <a href="javascript:setlang('en');" title="English" class="languagechoosea">English</a> <a href="javascript:setlang('zh-tw');" title="繁體中文" class="languagechoosea">繁體中文</a> <a href="javascript:setlang('ja');" title="日本語" class="languagechoosea">日本語</a> <a href="javascript:setlang('ko');" title="???" class="languagechoosea">???</a> <a href="javascript:setlang('ms');" title="Melayu" class="languagechoosea">Melayu</a> <a 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href="#HTML-輸入占位符示例" title="HTML 輸入占位符示例" >HTML 輸入占位符示例</a> </div> <div id="377j5v51b" class="Article_Details_main1L2s "> <a href="#示例" title="示例 #3" >示例 #3</a> </div> </div> </div> </div> <div id="377j5v51b" class="Article_Details_main1M"> <div id="377j5v51b" class="phpgenera_Details_mainL1"> <a href="http://miracleart.cn/zh/" title="首頁" class="phpgenera_Details_mainL1a">首頁</a> <img src="/static/imghw/top_right.png" alt="" /> <a href="http://miracleart.cn/zh/web-designer.html" class="phpgenera_Details_mainL1a">web前端</a> <img src="/static/imghw/top_right.png" alt="" /> <a href="http://miracleart.cn/zh/div-tutorial.html" class="phpgenera_Details_mainL1a">html教程</a> <img src="/static/imghw/top_right.png" alt="" /> <span>HTML 輸入占位符</span> </div> <div id="377j5v51b" class="Articlelist_txts"> <div id="377j5v51b" class="Articlelist_txts_info"> <h1 class="Articlelist_txts_title">HTML 輸入占位符</h1> <div id="377j5v51b" class="Articlelist_txts_info_head"> <div id="377j5v51b" class="author_info"> <a href="http://miracleart.cn/zh/member/465014.html" class="author_avatar"> <img class="lazy" data-src="https://img.php.cn/upload/avatar/000/465/014/627b58ba8fa6c600.jpg" src="/static/imghw/default1.png" alt="王林"> </a> <div id="377j5v51b" class="author_detail"> <a href="http://miracleart.cn/zh/member/465014.html" class="author_name">王林</a> </div> </div> </div> <span id="377j5v51b" class="Articlelist_txts_time">Sep 04, 2024 pm 04:54 PM</span> <div id="377j5v51b" class="Articlelist_txts_infos"> <span id="377j5v51b" class="Articlelist_txts_infoss on">html</span> <span id="377j5v51b" class="Articlelist_txts_infoss ">html5</span> <span id="377j5v51b" class="Articlelist_txts_infoss ">HTML Tutorial</span> <span id="377j5v51b" class="Articlelist_txts_infoss ">HTML Properties</span> <span id="377j5v51b" class="Articlelist_txts_infoss ">HTML tags</span> </div> </div> </div> <hr /> <div id="377j5v51b" class="article_main php-article"> <div id="377j5v51b" class="article-list-left detail-content-wrap content"> <ins class="adsbygoogle" style="display:block; text-align:center;" data-ad-layout="in-article" data-ad-format="fluid" data-ad-client="ca-pub-5902227090019525" data-ad-slot="3461856641"> </ins> <p>HTML 輸入占位符作為給定元素的提示，有助于識別給定輸入字段所需的值。這可用于用戶實際輸入輸入之前的輸入文本字段或文本區(qū)域。它從作為占位符文本包含的相應(yīng)選擇器元素中選擇值，并在用戶將輸入輸入到輸入字段時將其顯示為建議。將占位符放入輸入字段使用戶可以輕松地在給定的輸入字段中輸入所需的值。因此它最大限度地減少了用戶的努力。基本上，占位符是淺灰色的，但我們也可以通過使用一些 CSS 屬性來更改其顏色。</p> <p><strong>語法：</strong></p> <p>讓我們看看占位符的語法，以及它將如何在輸入字段中使用。</p> <pre class="brush:php;toolbar:false"><element placeholder="placeholder_text"></pre> <p><textfield> 的屬性和元素是占位符。占位符被視為提示用戶在輸入字段中輸入實際輸入值。</textfield></p> <p>可以使用以下一些 CSS 代碼來設(shè)置占位符的樣式：</p> <pre class="brush:php;toolbar:false">::placeholder{ //CSS code; }</pre> <p>占位符可以通過使用對比度等功能來實現(xiàn)，它描述了您的占位符顏色比輸入字段的背景更亮，可用性定義了您用作占位符的文本在輸入字段中輸入內(nèi)容時必須消失.</p> <p>在輸入字段之外定義占位符也被視為在輸入字段中使用占位符的最佳方式。</p> <p>這些輸入字段將與一些偽類一起使用，例如啟用、禁用、只讀、讀寫、顯示占位符、默認(rèn)、檢查、不確定、有效、無效、在范圍內(nèi)、超出范圍-范圍、必填、可選、空白以及更多其他類別。</p> <p>像類一樣，也將使用許多屬性，例如 max、maxlength、min、minlength、pattern、required、step、type 等。</p> <p>讓我們看看如何將占位符與輸入文本一起使用：</p> <pre class="brush:php;toolbar:false"><input type="text " placeholder="placeholder-text"></pre> <p>此語法適用于簡單的輸入文本字段，因此您將幫助用戶使用占位符屬性將正確的輸入添加到輸入字段中。占位符 - 文本只不過是關(guān)于用戶實際要在此輸入字段中輸入的內(nèi)容的建議。</p> <p>我們使用占位符的另一件事是輸入文本區(qū)域。在此輸入字段中，我們可以通過使用占位符來建議人們到底可以提供什么作為輸入，因此這對于為適當(dāng)?shù)妮斎胫颠M(jìn)行輸入的人和為獲得更好的用戶體驗而輸入輸入的用戶都有幫助。</p> <pre class="brush:php;toolbar:false"><input type="textarea" placeholder="placeholder-text"></pre> <p>占位符中有兩種不同的東西，一種是 :placeholder-shown ，它的含義是通過輸入字段中可用的占位符文本來完成輸入的選擇，而另一種是::placeholder ，它是使用的為占位符賦予樣式。</p> <p>占位符不能用作標(biāo)題或標(biāo)簽屬性，也不能將其視為兩者的替代品。</p> <p>可以更改占位符的樣式，以在任何瀏覽器中顯示相同的占位符，對于這種情況，我們必須為特定瀏覽器應(yīng)用 CSS 代碼，以便它在每個瀏覽器中顯示相同的內(nèi)容。</p> <h3 id="HTML-輸入占位符示例">HTML 輸入占位符示例</h3> <p>以下是下面提到的以下示例。</p> <h4 id="示例">示例#1</h4> <p>在此示例中，我們將創(chuàng)建一個登錄表單和一個注冊表單，其中我們對所有輸入字段使用占位符，因此 HTML 代碼和輸出如下：</p> <p><strong>代碼：</strong></p> <pre class="brush:php;toolbar:false"><!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <style> .container { padding: 2px 12px; } .card { border: 1px solid blue; border-radius: 5px; padding-left: 5%; } </style> </head> <body > <div class="card"> <h4>Login Form</h4> <form action="#"> <label for="username">User Name : </label><br> <input type="text" name="username" placeholder="Enter User Name"><br> <label for="pw">Password : </label><br> <input type="password" name="pw" placeholder="Enter Password" ><br><br> <input type="submit" value="Login"><br><br> </form> </div> <br><hr> <div class="card"> <h4>Registration Form</h4> <form> <label for="fname">First Name</label><br> <input type="text" name="fname" placeholder="Enter First Name here"><br> <label for="lname">Last Name</label><br> <input type="text" name="lname" placeholder="Enter Last Name here"><br> <label for="email">Email_ID</label><br> <input type="email" name="email" placeholder="Enter Email ID here"><br> <label for="mobileno">Contact No</label><br> <input type="number" name="fname" placeholder="Enter Contact No"><br> <label for="address">Address</label><br> <input type="textarea" name="address" placeholder="Enter Address Here"><br><br> <input type="submit" value="Register"><br><br> </form> </div> </body> </html></pre> <p><strong>輸出：</strong></p> <p><img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/172544006758459.png" class="lazy" alt="HTML 輸入占位符" ></p> <h4 id="示例">示例#2</h4> <p>在此示例中，我們將了解如何更改占位符的顏色。</p> <p><strong>代碼：</strong></p> <pre class="brush:php;toolbar:false"><!DOCTYPE html> <html> <head> <title>Placeholder Color Demo</title> </head> <style> ::placeholder{ color: coral; } </style> <body> <center> <h3> Changing Color of Placeholder </h3> <h5>Enter Course Details Here</h5> <form action="#"> <input type="text" name="cname" placeholder="Course Name"> <br> <br> <input type="text" name="duration" placeholder="Course Durations (in Months)"> <br> <br> <textarea placeholder="Course Details (Syllabus)"></textarea> <br><br>? <input type="submit" value="Get Details"> </form> </center> </body> </html></pre> <p><strong>輸出：</strong></p> <p><img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/172544006863390.png" class="lazy" alt="HTML 輸入占位符" ></p> <h4 id="示例">示例 #3</h4> <p>這是 HTML 占位符的又一個示例，它也適用于輸入字段以及文本區(qū)域。</p> <p><strong>代碼：</strong></p> <pre class="brush:php;toolbar:false"><html> <head> <title>HTML Placeholder</title> </head> <body> <form > <table border="2" align="center" width="500" bgcolor="lightblue" > <caption><b>We help jobseeker for getting better Jobs!</b></caption> <tr> <th>Enter First Name</th> <td><input type="text" name="fn" placeholder="John" required/></td> </tr> <tr> <th>Enter Last Name</th> <td><input type="text" placeholder="Smith" required/ ></td> </tr> <tr> <th>Enter Email ID</th> <td><input type="email" placeholder="[email protected]" required/></td> </tr> <tr> <th>Enter? Password</th> <td><input type="password" placeholder="JSJS123" required/></td> </tr> <tr> <th>Confirm Password</th> <td><input type="password" placeholder="JSJS123" required/></td> </tr> <tr> <th>Enter Mobile Number</th> <td><input type="number" placeholder="9867986798" required/></td> </tr> <tr> <th>Select Date of Birth</th> <td><input type="date" placeholder="30-04-1994"/></td> </tr> <tr> <th>Enter City</th> <td><input type="city" placeholder="Eg. Pune"/></td> </tr> <tr> <th>Enter Address</th> <td><textarea rows="3" cols="20" placeholder="Enter address details"></textarea></td> </tr> <tr> <th>Select Gender</th> <td> male<input type="radio" name="g" /> female<input type="radio" name="g" /> other<input type="radio" name="o"/> </td> </tr> <tr> <th>Position Applied for</th> <td> <select name="position"> <option value="" selected="selected" disabled="disabled">Select Position</option> <option value="1">.NET Developer</option> <option value="2">UX-UI Designer</option> <option value="3">Full Stack Developer</option> <option value="4">Digital Marketing</option> </select> </td> </tr> <tr> <th>Additional skills or Certifications</th> <td><textarea rows="5" cols="20" placeholder="Enter your master skills as well as certification you completed"></textarea></td> </tr> <tr> <th>Upload Resume Here</th> <td><input type="file"/ ></td> </tr> <tr> <td colspan="2" align="center"><input type="submit" value="Save Details"/> <input type="reset" value="Reset Details"/> </td> </tr> </table> </form> </body> </html></pre> <p><strong>輸出：</strong></p> <p><img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/172544007059734.png" class="lazy" alt="HTML 輸入占位符" ></p> <p><strong>結(jié)論</strong></p> <p>從以上信息來看，我們可以說 HTML 占位符只不過是輸入字段（如文本輸入字段或文本區(qū)域）中的一種相關(guān)文本、建議或提示。因此，用戶可以輕松地從占位符中捕獲內(nèi)容，并在輸入字段中提供適當(dāng)?shù)妮斎搿?/p><p>以上是HTML 輸入占位符的詳細(xì)內(nèi)容。更多信息請關(guān)注PHP中文網(wǎng)其他相關(guān)文章！</p> </div> </div> <div id="377j5v51b" class="wzconShengming_sp"> <div id="377j5v51b" class="bzsmdiv_sp">本站聲明</div> <div>本文內(nèi)容由網(wǎng)友自發(fā)貢獻(xiàn)，版權(quán)歸原作者所有，本站不承擔(dān)相應(yīng)法律責(zé)任。如您發(fā)現(xiàn)有涉嫌抄襲侵權(quán)的內(nèi)容，請聯(lián)系admin@php.cn</div> </div> </div> <ins class="adsbygoogle" style="display:block" data-ad-format="autorelaxed" data-ad-client="ca-pub-5902227090019525" data-ad-slot="2507867629"></ins> <div id="377j5v51b" class="AI_ToolDetails_main4sR"> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-5902227090019525" data-ad-slot="3653428331" data-ad-format="auto" data-full-width-responsive="true"></ins>  <div id="377j5v51b" class="phpgenera_Details_mainR3"> <div id="377j5v51b" class="phpmain1_4R_readrank"> <div id="377j5v51b" class="phpmain1_4R_readrank_top"> <img onerror="this.onerror=''; 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