Html Radio Button Span Html Learn Free

Html Radio Button  Span Html Learn Free

What does html stand for

HTML stands for Hypertext Markup Language.

How to center an image in html

You can center an image in HTML using CSS or HTML attributes. Here’s a simple way to center an image using HTML:

<!DOCTYPE html>

<html>

<head>

<style>

.center {

display: block;

margin-left: auto;

margin-right: auto;

}

</style>

</head>

<body>

<img src=”image.jpg” alt=”Centered Image” class=”center”>

</body>

</html>

The CSS class .center uses display: block to make the image a block element and margin-left: auto; margin-right: auto; to center it horizontally within its containing element.

You can replace “image.jpg” with the path to your image file.

Html Space

In HTML, spaces are usually collapsed into a single space character by the browser, except for non-breaking spaces (&nbsp;) or when using the CSS property white-space: pre;, which preserves white space.

Here are some common space-related elements and characters in HTML:

Regular Space: The regular space character in HTML is simply a spacebar press. However, in HTML code, multiple consecutive spaces are usually collapsed into a single space when rendered in the browser.

Non-Breaking Space: &nbsp; is a non-breaking space. It prevents the browser from collapsing multiple consecutive spaces into a single space. It’s often used when you want to force space between elements but don’t want the browser to condense it.

Preformatted Text: Using the <pre> tag or CSS property white-space: pre; preserves white space, including spaces, tabs, and line breaks, exactly as they appear in the HTML code.

<!DOCTYPE html>

<html>

<head>

<title>Whitespace</title>

</head>

<body>

<p>This is    some     text.</p>

<p>This&nbsp;is&nbsp;some&nbsp;text.</p>

<pre>

This     is   preformatted

text.

</pre>

</body>

</html>

In the example above, the first <p> tag will display the text with multiple spaces collapsed into one. The second <p> uses &nbsp; to create non-breaking spaces, preserving the spaces as given. The <pre> tag preserves the spaces and indentation exactly as written in the HTML code.

Span html

In HTML, the <span> element is an inline container used to apply styles or manipulate specific portions of text within a larger block of content. It doesn’t add any semantic meaning to the content itself; rather, it’s a way to target specific parts of the content for styling or scripting purposes.

Here’s a simple example of how you might use the <span> element:

<!DOCTYPE html>

<html>

<head>

<title>Span Example</title>

<style>

.highlight {

color: red;

font-weight: bold;

}

</style>

</head>

<body>

<p>This is a <span class=”highlight”>highlighted</span> word in a sentence.</p>

</body>

</html>

In this example, the <span> element with the class “highlight” is used to target and style the word “highlighted” differently within the paragraph.

The <span> element is versatile and commonly used with CSS to style or JavaScript to manipulate specific sections of text or content within an HTML document. It’s essentially a generic container that allows you to apply styles or scripts to a specific portion of the content without affecting the layout or structure.

Html radio button

In HTML, radio buttons are used when you want users to select only one option from a list of options. They are created using the <input> element with the type=”radio” attribute.

Here’s an example of how radio buttons can be implemented:

<!DOCTYPE html>

<html>

<head>

<title>Radio Buttons</title>

</head>

<body>

<form>

<label>

<input type=”radio” name=”gender” value=”male”>

Male

</label><br>

<label>

<input type=”radio” name=”gender” value=”female”>

Female

</label><br>

<label>

<input type=”radio” name=”gender” value=”other”>

Other

</label><br>

</form>

</body>

</html>

In this example, all radio buttons share the same name attribute (gender), which groups them together, allowing the user to select only one option. The value attribute defines the value that will be sent to the server when the form is submitted based on the selected radio button.

Radio buttons work as a group where only one option can be selected at a time within the same group (identified by the same name attribute).

To make the default selection, you can add the checked attribute to one of the radio buttons.

Always use a <label> tag associated with the radio button for better accessibility. The label text is clickable and helps users select the option.

When you submit the form, the selected value from the radio button will be sent as a part of the form data for further processing, like in server-side scripts or client-side JavaScript.

Html symbols

In HTML, you can use special character entities called HTML entities or character codes to display symbols, special characters, and non-ASCII characters that might not be available on your keyboard or have special meaning in HTML.

Here are a few commonly used HTML entities for symbols:

< – Less than: &lt;

> – Greater than: &gt;

& – Ampersand: &amp;

” – Double quotation mark: &quot;

‘ – Apostrophe or single quotation mark: &apos; (though not supported in all browsers, &apos; can be replaced by ‘ directly)

© – Copyright symbol: &copy;

® – Registered trademark symbol: &reg;

™ – Trademark symbol: &trade;

° – Degree symbol: &deg;

× – Multiplication symbol (×): &times;

÷ – Division symbol (÷): &divide;

€ – Euro symbol: &euro;

£ – Pound sterling symbol: &pound;

¥ – Yen symbol: &yen;

— – Em dash: &mdash;

– – En dash: &ndash;

For example, to display the copyright symbol, you can use &copy;. If you’re writing HTML directly, using these entities allows you to display these symbols accurately across different browsers and platforms.

Html textarea

In HTML, the <textarea> element is used to create a multi-line text input area where users can input larger amounts of text. It’s often used in forms for comments, messages, or any kind of free-form text input.

Here’s an example of how you can create a textarea in HTML:

<!DOCTYPE html>

<html>

<head>

<title>Textarea Example</title>

</head>

<body>

<form>

<label for=”message”>Enter your message:</label><br>

<textarea id=”message” name=”message” rows=”4″ cols=”40″></textarea><br>

<input type=”submit” value=”Submit”>

</form>

</body>

</html>

Explanation:

The <textarea> element is defined with an id attribute (“message”), a name attribute (“message”), and specified dimensions using the rows and cols attributes.

The rows attribute defines the visible number of lines, while cols defines the visible width (in characters).

The <label> element is used to provide a label for the textarea. The for attribute in the label corresponds to the id of the textarea, creating a connection that aids accessibility and usability.

The <input type=”submit”> is added here as an example to submit the form. You can have other form controls and additional HTML elements within the form.

Users can type or paste text into the textarea, and when the form containing the textarea is submitted, the entered text will be sent as a part of the form data for further processing, such as server-side handling or client-side JavaScript operations.

Remember, you can style <textarea> elements using CSS to change their appearance, dimensions, borders, and more to better suit your website’s design and requirements.

Html underline

In HTML, you can underline text using the <u> tag, which represents an underline. However, using the <u> tag isn’t the best practice for underlining text; it’s considered semantically incorrect for modern HTML usage. Instead, CSS is preferred for styling content, including underlining text.

Here’s an example of underlining text using CSS:

HTML:

<!DOCTYPE html>

<html>

<head>

<title>Underline Text</title>

<style>

.underline-text {

text-decoration: underline;

}

</style>

</head>

<body>

<p class=”underline-text”>This text will be underlined using CSS.</p>

</body>

</html>

.underline-text {

text-decoration: underline;

}

In this example:

The .underline-text class applies the text-decoration: underline; style, which adds an underline to any text enclosed by an element using this class.

Using CSS for styling provides more control and separation of concerns, allowing you to define styles separately from the content’s structure. It also ensures better accessibility and semantic correctness compared to using the <u> tag, which is typically discouraged in modern web development.

Html canvas

The HTML <canvas> element is used to draw graphics, animations, or other visual images on a web page using JavaScript. It provides a bitmap-based drawing surface that you can manipulate with JavaScript to create various graphical effects, animations, games, data visualizations, and more.

Here’s a basic example of how to create and use a canvas element:

<!DOCTYPE html>

<html>

<head>

<title>Canvas Example</title>

</head>

<body>

<canvas id=”myCanvas” width=”400″ height=”200″ style=”border:1px solid black;”></canvas>

<script>

// Get the canvas element using its id

var canvas = document.getElementById(“myCanvas”);

// Get the canvas 2D drawing context

var ctx = canvas.getContext(“2d”);

// Draw a rectangle on the canvas

ctx.fillStyle = “blue”; // Set fill color to blue

ctx.fillRect(50, 50, 100, 80); // Draw a filled rectangle

// Draw text on the canvas

ctx.font = “20px Arial”;

ctx.fillStyle = “white”;

ctx.fillText(“Hello, Canvas!”, 70, 120);

</script>

</body>

</html>

Explanation:

The <canvas> element is created with an id (“myCanvas”), width, and height attributes. It’s given a black border for visibility.

JavaScript is used to interact with the canvas:

document.getElementById(“myCanvas”) retrieves the canvas element.

getContext(“2d”) retrieves the 2D drawing context, allowing you to draw shapes, text, and images on the canvas.

ctx.fillStyle sets the fill color for shapes.

ctx.fillRect() draws a filled rectangle at coordinates (50, 50) with a width of 100 and height of 80.

ctx.font and ctx.fillText() are used to set the font and draw text (“Hello, Canvas!”) at coordinates (70, 120).

The canvas element and its 2D context provide a powerful way to create dynamic and interactive graphics on web pages using JavaScript. It’s commonly used in web applications for various visualizations, games, charts, drawing apps, and more

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