\n| 3<\/td>\n | Python<\/td>\n | Python is very popular in today’s era specially since it support quick development of application based on machine learning, big data and AI.<\/td>\n<\/tr>\n<\/table>\n<\/body>\n<\/html><\/pre>\n As you see, we have defined the column headers using , which gives them a bold look as compared to data represented in | tag, which has a standard look.<\/p>\n The above example gives us the following output when viewed in the browser:<\/p>\n ![\"HTML](\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543839871116.png\") <\/p>\n
Attributes of?HTML tr Tag<\/h3>\nIn order to further customize the data presented in an | element, we can use the following attribute in the tag :<\/p>\n\n\n1. Align<\/h4>\nWith align attribute, we can customize the text alignment in a tag. It can work with the following values.<\/p>\n\n- Right<\/li>\n
- Left<\/li>\n
- Center<\/li>\n
- Justify<\/li>\n
- Char<\/li>\n<\/ul>\n
However, this property is not supported in HTML 5.<\/p>\n 2. Background<\/h4>\nWe can set the background of a row by using the background property in the style tag. Let’s see an example for the same below.<\/p>\n Code:<\/strong><\/p>\n\n\n\nThis is a table example<\/title>\n<style>\nth, td {\npadding : 10px;\nborder : 1px solid #666;\n}\n<\/style>\n<\/head>\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<table style=\" width:80%; margin : 30px auto; border-collapse : collapse;\">\n<tr>\n<th> Sr. No. <\/th>\n<th> Popular programming languages <\/th>\n<th> Description <\/th>\n<\/tr>\n<tr style=\"background : #00ff3787\"> \/\/ here we are setting the back ground color to #00ff3787\n<td> 1 <\/td>\n<td> Java <\/td>\n<td> Java has been holding position 1 or 2 for the world’s most popular languages since it’s inception. It was created in mid 90s and since then many large and small companies have adopted it for developing desktop and web applications<\/td>\n<\/tr>\n<tr>\n<td> 2<\/td>\n<td> C <\/td>\n<td>C is a popular language for cars, sensors and embedded systems. It has been one of the top most popular languages mainly due to its universal compatibility<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Python<\/td>\n<td>Python is very popular in today’s era specially since it support quick development of application based on machine learning, big data and AI.<\/td>\n<\/tr>\n<\/table>\n<\/body>\n<\/html><\/pre>\n<p>The output of the above code would be as follows in the browser window where the background color of the first row has changed to green :<\/p>\n<p><img src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543840374042.png\" alt=\"HTML tr Tag\" ><\/p>\n\n\n<h4>3. Color<\/h4>\n<p>We can manipulate the color of the text in an arrow by using the color property in a tr tag. Let’s change the font color for one of the rows to grey.<\/p>\n<p><strong>Code:<\/strong><\/p>\n<pre><!DOCTYPE html>\n<html>\n<head>\n<title>This is an example of HTML table<\/title>\n<style>\nth, td {\npadding : 10px;\nborder : 1px solid #666;\n}\n<\/style>\n<\/head>\n<body>\n<table style=\" width:80%; margin : 30px auto; border-collapse : collapse;\">\n<tr>\n<th> Sr. No. <\/th>\n<th> Popular programming languages in 2019 <\/th>\n<th> Description <\/th>\n<\/tr>\n<tr style=\"color : grey\"> \/\/ here we are setting the font color to grey\n<td> 1 <\/td>\n<td> Java <\/td>\n<td> Java has been holding position 1 or 2 for the world’s most popular languages since it’s inception. It was created in mid 90s and since then many large and small companies have adopted it for developing desktop and web applications<\/td>\n<\/tr>\n<tr>\n<td> 2<\/td>\n<td> C <\/td>\n<td>C is a popular language for cars, sensors and embedded systems. It has been one of the top most popular languages mainly due to its universal compatibility<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Python<\/td>\n<td>Python is very popular in today’s era specially since it support quick development of application based on machine learning, big data and AI.<\/td>\n<\/tr>\n<\/table>\n<\/body>\n<\/html><\/pre>\n<p>The output of the above code in the browser window would be as follows where we are able to spot the font color applies to the first row of the table :<\/p>\n<p><img src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543840722954.png\" alt=\"HTML tr Tag\" ><\/p>\n<h3>Conclusion<\/h3>\n<p>As seen above, we can use the HTML table and tr elements to define and represent structured data. We can customize different rows in the same table to change the row’s styling. We can also use th and td to define table headers and standard table data. We can further customize the font color, font size, font family, font decoration and background color of a row.<\/p>"} </script>
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<a href="#Syntax-of-HTML-tr-Tag" title="Syntax of HTML tr Tag" >Syntax of HTML tr Tag</a>
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<div id="377j5v51b" class="Article_Details_main1L2s ">
<a href="#Attributes-of-HTML-tr-Tag" title="Attributes of?HTML tr Tag" >Attributes of?HTML tr Tag</a>
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<a href="#Align" title="1. Align" >1. Align</a>
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<a href="#Background" title="2. Background" >2. Background</a>
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<a href="#Color" title="3. Color" >3. Color</a>
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<a href="#Conclusion" title="Conclusion" >Conclusion</a>
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<span>HTML tr Tag</span>
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<h1 class="Articlelist_txts_title">HTML tr Tag</h1>
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<span id="377j5v51b" class="Articlelist_txts_time">Sep 04, 2024 pm 04:26 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>
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<p>HTML provides multiple options to represent structured as well as unstructured data. It allows us to present data in the paragraph, ordered lists, unordered lists, tables, etc. In this topic, we are going to learn about HTML tr Tag.</p>
<p>HTML tables are created defining the table rows and cells in the table tag <table> </table>. The rows in the table are defined by the tr tag represented as <tr> ….. </tr> . The rows in HTML contain data cells presented in <td> … </td> tag if it’s a standard data cell or in a <th> … </th> tag if it’s a header cell .</p>
<h3 id="Syntax-of-HTML-tr-Tag">Syntax of HTML tr Tag</h3>
<p>The syntax with the table, table row, and table cell hierarchy would be as follow :</p>
<p><strong>Syntax:</strong></p>
<pre class="brush:php;toolbar:false"><table>
<tr>
<th> … </th>
<td> …. </td>
</tr>
</table></pre>
<p>Let’s review the below example:</p>
<p><strong>Example:</strong></p>
<pre class="brush:php;toolbar:false"><!DOCTYPE html>
<html>
<head>
<title>This is a table example</title>
<style>
th, td {
padding : 10px;
border : 1px solid #666;
}
</style>
</head>
<body>
<table style=" width:80%; margin : 30px auto; border-collapse : collapse;">
<tr>
<th> Sr. No. </th>
<th> Popular programming languages </th>
<th> Description </th>
</tr>
<tr>
<td> 1 </td>
<td> Java </td>
<td> Java has been holding position 1 or 2 for the world’s most popular languages since it’s inception. It was created in mid 90s and since then many large and small companies have adopted it for developing desktop and web applications</td>
</tr>
<tr>
<td> 2</td>
<td> C </td>
<td>C is a popular language for cars, sensors and embedded systems. It has been one of the top most popular languages mainly due to its universal compatibility</td>
</tr>
<tr>
<td>3</td>
<td>Python</td>
<td>Python is very popular in today’s era specially since it support quick development of application based on machine learning, big data and AI.</td>
</tr>
</table>
</body>
</html></pre>
<p>As you see, we have defined the column headers using <the>, which gives them a bold look as compared to data represented in <td> tag, which has a standard look.</p>
<p>The above example gives us the following output when viewed in the browser:</p>
<p><img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/172543839871116.png" class="lazy" alt="HTML tr Tag" ></p>
<h3 id="Attributes-of-HTML-tr-Tag">Attributes of?HTML tr Tag</h3>
<p>In order to further customize the data presented in an <tr> element, we can use the following attribute in the <tr> tag :</p>
<h4 id="Align">1. Align</h4>
<p>With align attribute, we can customize the text alignment in a <tr> tag. It can work with the following values.</p>
<ul>
<li>Right</li>
<li>Left</li>
<li>Center</li>
<li>Justify</li>
<li>Char</li>
</ul>
<p>However, this property is not supported in HTML 5.</p>
<h4 id="Background">2. Background</h4>
<p>We can set the background of a row by using the background property in the style tag. Let’s see an example for the same below.</p>
<p><strong>Code:</strong></p>
<pre class="brush:php;toolbar:false"><!DOCTYPE html>
<html>
<head>
<title>This is a table example</title>
<style>
th, td {
padding : 10px;
border : 1px solid #666;
}
</style>
</head>
<body>
<table style=" width:80%; margin : 30px auto; border-collapse : collapse;">
<tr>
<th> Sr. No. </th>
<th> Popular programming languages </th>
<th> Description </th>
</tr>
<tr style="background : #00ff3787"> // here we are setting the back ground color to #00ff3787
<td> 1 </td>
<td> Java </td>
<td> Java has been holding position 1 or 2 for the world’s most popular languages since it’s inception. It was created in mid 90s and since then many large and small companies have adopted it for developing desktop and web applications</td>
</tr>
<tr>
<td> 2</td>
<td> C </td>
<td>C is a popular language for cars, sensors and embedded systems. It has been one of the top most popular languages mainly due to its universal compatibility</td>
</tr>
<tr>
<td>3</td>
<td>Python</td>
<td>Python is very popular in today’s era specially since it support quick development of application based on machine learning, big data and AI.</td>
</tr>
</table>
</body>
</html></pre>
<p>The output of the above code would be as follows in the browser window where the background color of the first row has changed to green :</p>
<p><img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/172543840374042.png" class="lazy" alt="HTML tr Tag" ></p>
<h4 id="Color">3. Color</h4>
<p>We can manipulate the color of the text in an arrow by using the color property in a tr tag. Let’s change the font color for one of the rows to grey.</p>
<p><strong>Code:</strong></p>
<pre class="brush:php;toolbar:false"><!DOCTYPE html>
<html>
<head>
<title>This is an example of HTML table</title>
<style>
th, td {
padding : 10px;
border : 1px solid #666;
}
</style>
</head>
<body>
<table style=" width:80%; margin : 30px auto; border-collapse : collapse;">
<tr>
<th> Sr. No. </th>
<th> Popular programming languages in 2019 </th>
<th> Description </th>
</tr>
<tr style="color : grey"> // here we are setting the font color to grey
<td> 1 </td>
<td> Java </td>
<td> Java has been holding position 1 or 2 for the world’s most popular languages since it’s inception. It was created in mid 90s and since then many large and small companies have adopted it for developing desktop and web applications</td>
</tr>
<tr>
<td> 2</td>
<td> C </td>
<td>C is a popular language for cars, sensors and embedded systems. It has been one of the top most popular languages mainly due to its universal compatibility</td>
</tr>
<tr>
<td>3</td>
<td>Python</td>
<td>Python is very popular in today’s era specially since it support quick development of application based on machine learning, big data and AI.</td>
</tr>
</table>
</body>
</html></pre>
<p>The output of the above code in the browser window would be as follows where we are able to spot the font color applies to the first row of the table :</p>
<p><img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/172543840722954.png" class="lazy" alt="HTML tr Tag" ></p>
<h3 id="Conclusion">Conclusion</h3>
<p>As seen above, we can use the HTML table and tr elements to define and represent structured data. We can customize different rows in the same table to change the row’s styling. We can also use th and td to define table headers and standard table data. We can further customize the font color, font size, font family, font decoration and background color of a row.</p><p>The above is the detailed content of HTML tr Tag. For more information, please follow other related articles on the PHP Chinese website!</p>
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<span id="377j5v51b" class="Articlelist_txts_time">Jul 03, 2025 am 02:28 AM</span>
<p class="Articlelist_txts_p">When using HTML5SSE, the methods to deal with reconnection and errors include: 1. Understand the default reconnection mechanism. EventSource retrys 3 seconds after the connection is interrupted by default. You can customize the interval through the retry field; 2. Listen to the error event to deal with connection failure or parsing errors, distinguish error types and execute corresponding logic, such as network problems relying on automatic reconnection, server errors manually delay reconnection, and authentication failure refresh token; 3. Actively control the reconnection logic, such as manually closing and rebuilding the connection, setting the maximum number of retry times, combining navigator.onLine to judge network status to optimize the retry strategy. These measures can improve application stability and user experience.</p>
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<div id="377j5v51b" class="phphistorical_Version2_mids">
<a href="http://miracleart.cn/faq/1796829178.html" title="Declaring the correct HTML5 doctype for modern pages." class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/175148132111973.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Declaring the correct HTML5 doctype for modern pages." />
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<a href="http://miracleart.cn/faq/1796829178.html" title="Declaring the correct HTML5 doctype for modern pages." class="phphistorical_Version2_mids_title">Declaring the correct HTML5 doctype for modern pages.</a>
<span id="377j5v51b" class="Articlelist_txts_time">Jul 03, 2025 am 02:35 AM</span>
<p class="Articlelist_txts_p">Doctype is a statement that tells the browser which HTML standard to use to parse the page. Modern web pages only need to be written at the beginning of the HTML file. Its function is to ensure that the browser renders the page in standard mode rather than weird mode, and must be located on the first line, with no spaces or comments in front of it; there is only one correct way to write it, and it is not recommended to use old versions or other variants; other such as charset, viewport, etc. should be placed in part.</p>
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<div id="377j5v51b" class="phphistorical_Version2_mids">
<a href="http://miracleart.cn/faq/1796829167.html" title="Implementing client-side form validation using HTML attributes." class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/175148109151878.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Implementing client-side form validation using HTML attributes." />
</a>
<a href="http://miracleart.cn/faq/1796829167.html" title="Implementing client-side form validation using HTML attributes." class="phphistorical_Version2_mids_title">Implementing client-side form validation using HTML attributes.</a>
<span id="377j5v51b" class="Articlelist_txts_time">Jul 03, 2025 am 02:31 AM</span>
<p class="Articlelist_txts_p">Client-sideformvalidationcanbedonewithoutJavaScriptbyusingHTMLattributes.1)Userequiredtoenforcemandatoryfields.2)ValidateemailsandURLswithtypeattributeslikeemailorurl,orusepatternwithregexforcustomformats.3)Limitvaluesusingmin,max,minlength,andmaxlen</p>
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<div id="377j5v51b" class="phphistorical_Version2_mids">
<a href="http://miracleart.cn/faq/1796828942.html" title="Improving SEO with HTML5 semantic markup and Microdata." class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/175147660275182.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Improving SEO with HTML5 semantic markup and Microdata." />
</a>
<a href="http://miracleart.cn/faq/1796828942.html" title="Improving SEO with HTML5 semantic markup and Microdata." class="phphistorical_Version2_mids_title">Improving SEO with HTML5 semantic markup and Microdata.</a>
<span id="377j5v51b" class="Articlelist_txts_time">Jul 03, 2025 am 01:16 AM</span>
<p class="Articlelist_txts_p">Using HTML5 semantic tags and Microdata can improve SEO because it helps search engines better understand page structure and content meaning. 1. Use HTML5 semantic tags such as,,,, and to clarify the function of page blocks, which helps search engines establish a more accurate page model; 2. Add Microdata structured data to mark specific content, such as article author, release date, product price, etc., so that search engines can identify information types and use them for display of rich media summary; 3. Pay attention to the correct use of tags to avoid confusion, avoid duplicate tags, test the effectiveness of structured data, regularly update to adapt to changes in schema.org, and combine with other SEO means to optimize for long-term.</p>
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<div id="377j5v51b" class="phphistorical_Version2_mids">
<a href="http://miracleart.cn/faq/1796829956.html" title="How to group options within a select dropdown using html?" class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/175157020270129.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="How to group options within a select dropdown using html?" />
</a>
<a href="http://miracleart.cn/faq/1796829956.html" title="How to group options within a select dropdown using html?" class="phphistorical_Version2_mids_title">How to group options within a select dropdown using html?</a>
<span id="377j5v51b" class="Articlelist_txts_time">Jul 04, 2025 am 03:16 AM</span>
<p class="Articlelist_txts_p">Use tags in HTML to group options in the drop-down menu. The specific method is to wrap a group of elements and define the group name through the label attribute, such as: 1. Contains options such as apples, bananas, oranges, etc.; 2. Contains options such as carrots, broccoli, etc.; 3. Each is an independent group, and the options within the group are automatically indented. Notes include: ① No nesting is supported; ② The entire group can be disabled through the disabled attribute; ③ The style is restricted and needs to be beautified in combination with CSS or third-party libraries; plug-ins such as Select2 can be used to enhance functions.</p>
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<div id="377j5v51b" class="phphistorical_Version2_mids">
<a href="http://miracleart.cn/faq/1796831880.html" title="Implementing Clickable Buttons Using the HTML button Element" class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/175182671121571.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Implementing Clickable Buttons Using the HTML button Element" />
</a>
<a href="http://miracleart.cn/faq/1796831880.html" title="Implementing Clickable Buttons Using the HTML button Element" class="phphistorical_Version2_mids_title">Implementing Clickable Buttons Using the HTML button Element</a>
<span id="377j5v51b" class="Articlelist_txts_time">Jul 07, 2025 am 02:31 AM</span>
<p class="Articlelist_txts_p">To use HTML button elements to achieve clickable buttons, you must first master its basic usage and common precautions. 1. Create buttons with tags and define behaviors through type attributes (such as button, submit, reset), which is submitted by default; 2. Add interactive functions through JavaScript, which can be written inline or bind event listeners through ID to improve maintenance; 3. Use CSS to customize styles, including background color, border, rounded corners and hover/active status effects to enhance user experience; 4. Pay attention to common problems: make sure that the disabled attribute is not enabled, JS events are correctly bound, layout occlusion, and use the help of developer tools to troubleshoot exceptions. Master this</p>
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<div id="377j5v51b" class="phphistorical_Version2_mids">
<a href="http://miracleart.cn/faq/1796835653.html" title="Integrating CSS and JavaScript effectively with HTML5 structure." class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/175226046128038.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Integrating CSS and JavaScript effectively with HTML5 structure." />
</a>
<a href="http://miracleart.cn/faq/1796835653.html" title="Integrating CSS and JavaScript effectively with HTML5 structure." class="phphistorical_Version2_mids_title">Integrating CSS and JavaScript effectively with HTML5 structure.</a>
<span id="377j5v51b" class="Articlelist_txts_time">Jul 12, 2025 am 03:01 AM</span>
<p class="Articlelist_txts_p">HTML5, CSS and JavaScript should be efficiently combined with semantic tags, reasonable loading order and decoupling design. 1. Use HTML5 semantic tags, such as improving structural clarity and maintainability, which is conducive to SEO and barrier-free access; 2. CSS should be placed in, use external files and split by module to avoid inline styles and delayed loading problems; 3. JavaScript is recommended to be introduced in front, and use defer or async to load asynchronously to avoid blocking rendering; 4. Reduce strong dependence between the three, drive behavior through data-* attributes and class name control status, and improve collaboration efficiency through unified naming specifications. These methods can effectively optimize page performance and collaborate with teams.</p>
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