Frequent question: Which section in HTML are optional and having no any specific tag?

Which part of HTML code is optional?

Form elements with no required attribute are defined as optional. Note: The :optional selector only applies to the form elements: input, select and textarea. Tip: Use the :required selector to select form elements which are required.

Which of the following tag is an optional HTML tag?

Basically, that’s the idea of optional HTML tags: you don’t have to write an HTML tag if you can easily infer it from the context. For instance, there’s no point in writing the <html> tag. … Similarly, there’s no point in wrapping the <head> tag around the <title> tag, and the <body> around the <for> or <p> tag.

Which tag is not used in HTML?


Tag Description
<big> Not supported in HTML5. Use CSS instead. Defines big text
<blockquote> Defines a section that is quoted from another source
<center> Not supported in HTML5. Use CSS instead. Defines centered text
<cite> Defines the title of a work
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What is option tag in HTML?

The <option> tag in HTML is used to choose an option from a Drop-Down menu. This tag can be used with or without any attributes and needed value can be sent to the server. The group of options can be created using <optgroup> Tag. It creates a group of related menu items.

What is the extension of HTML file *?

htm, both of them are an extension for the HTML file type. The . html stands for Hypertext markup Languages.

How do you change the direction of HTML text?

To set text direction in HTML, use the style attribute. The style attribute specifies an inline style for an element. The style attribute is used with the CSS property direction to set direction.

Which tag is used for inserting the largest heading in HTML?

The h1 element is the HTML tag for largest heading. You can use h1 for the main titles, h2 element for section titles, and h3 for smaller sub-sections.

How do I style an option tag?

You can use inline styles to add custome styling to <option> tags. For eg : <option style=”font-weight:bold;color:#09C;”>Option 1</option> This will apply the styles to this particular <option> element only. You can also use <option value=”” disabled> <br> </option> to add a line-break between the options.

What is AJAX HTML?

AJAX stands for Asynchronous JavaScript and XML. AJAX is a new technique for creating better, faster, and more interactive web applications with the help of XML, HTML, CSS, and Java Script. Ajax uses XHTML for content, CSS for presentation, along with Document Object Model and JavaScript for dynamic content display.

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What are the 10 basic HTML tags?

Your First 10 HTML Tags

  • <html> … </html> — The root element. …
  • <head> … </head> — The document head. …
  • <title> … </title> — The page title. …
  • <body> … </body> — The page’s content. …
  • <h1> … </h1> — A section heading. …
  • <p> … </p> — A paragraph. …
  • <a> … </a> — A link. …
  • <img> — An image. The img element lets you insert images into your web pages.

13 июл. 2010 г.

What are the 4 basic HTML tags?

To build any webpage you will need four primary tags: <html>, <head>, <title> and <body>. These are all container tags and must appear as pairs with a beginning and an ending. Here is a diagram, showing the two main parts and the primary tags.

How many total tags are there in HTML?

There are 142 and 132 HTML tags according to Mozilla Developer Network(MDN) and respectively.

What is Datalist tag in HTML?

The <datalist> tag specifies a list of pre-defined options for an <input> element. The <datalist> tag is used to provide an “autocomplete” feature for <input> elements. Users will see a drop-down list of pre-defined options as they input data.

How do I give an ID an option tag?

2 Answers. You can use the id attribute to set the ID to the option tag and use this. value into the onchange callback with select element.

Which is the correct CSS syntax?

The selector points to the HTML element you want to style. The declaration block contains one or more declarations separated by semicolons. Each declaration includes a CSS property name and a value, separated by a colon.

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