How to Bold, Italicize & Format Text in HTML: Techniques & Best Practices

Well-formatted text is a key ingredient in effective, engaging web content. Styling text with bold, italics, underlining and more guides readers, highlights key information, and makes your pages more scannable and appealing.

But what are the best ways to format text on the web? How can you use HTML and CSS to style content for maximum readability, accessibility, and impact?

In this comprehensive guide, we‘ll walk through all the ways to format text in HTML, including:

  • How to bold text with <strong> and <b> tags
  • How to italicize text with <em> and <i> tags
  • How to underline and strike-through text
  • How to add superscript and subscript text
  • Combining HTML and CSS for custom text formatting
  • Accessibility and SEO best practices
  • Text formatting tips and inspiration

Whether you‘re a beginner looking to learn the fundamentals or a more advanced user seeking to hone your text styling abilities, you‘ll find all the guidance and resources you need. Let‘s dive in!

Why Text Formatting Matters

Before we explore how to format text for the web, let‘s discuss why it‘s worth investing the time and effort to style your content.

Effective text formatting offers several key benefits:

Improved readability and scannability

Well-styled text enhances the visual hierarchy and organization of content, making it easier for users to parse and navigate. Research shows that users tend to scan web pages, and styling key phrases as bold, italics, or highlighted text helps them quickly grasp the main points.

Increased engagement and time on page

Drawing attention to key information and calls-to-action with styling keeps users focused and engaged with your content. One study found that combining bold and colored text improved conversions by 78%.

Enhanced accessibility

Using semantic HTML tags to convey meaning and importance, not just visual style, makes your content more friendly for users of screen readers and other assistive technologies. This is crucial for compliance and inclusivity.

SEO benefits

When search engine crawlers index your pages, they consider semantic HTML in evaluating relevance and quality. Using meaningful tags like <strong> instead of just visual styles may contribute to better rankings.

Now that we‘ve established the "why" behind text formatting, let‘s look at the "how" of styling content with HTML and CSS.

How to Bold Text in HTML

One of the most common ways to emphasize text is to make it bold. In HTML, you have two main options:

  1. The <strong> tag
  2. The <b> tag

The <strong> Tag

The <strong> tag is a semantic element that indicates the text is of strong importance. Browsers typically render this as bold text by default.

Here‘s an example:

<p>This is a normal paragraph, with some <strong>text of strong importance</strong> called out.</p>

This renders as:

This is a normal paragraph, with some text of strong importance called out.

The <strong> tag is generally preferred, as it conveys meaning, not just presentation. This is valuable for accessibility and SEO.

The <b> Tag

The <b> tag, on the other hand, is a presentational element. It simply makes text bold without implying any semantic meaning.

<p>This paragraph has some <b>bolded text</b> that isn‘t necessarily more important.</p>

Renders as:

This paragraph has some bolded text that isn‘t necessarily more important.

While <b> can still be appropriate for certain use cases, it‘s usually better to go with <strong> to give your content more structural value.

How to Italicize Text in HTML

To add emphasis or denote titles and proper names, italics are the way to go. Like bolding, you have two italics options in HTML:

  1. The <em> tag
  2. The <i> tag

The <em> Tag

The <em> tag is the semantic option for indicating stress emphasis. Browsers style it as italicized text.

<p>HTML and CSS are <em>essential</em> for web development.</p>

Renders as:

HTML and CSS are essential for web development.

The <i> Tag

The <i> tag is another presentational element that italicizes text without conveying emphasis or importance.

<p>My favorite magazine is <i>Wired</i>.</p>

Renders as:

My favorite magazine is Wired.

For most cases, <em> is the better choice for the added semantic clarity. But <i> can work for certain scenarios where italics are needed for visual style alone.

Underlining and Striking Through Text

Underlining and striking through text are two more tools for calling out specific content. However, avoid using underlining for emphasis, as that‘s reserved for hyperlinks. And strike-throughs should be applied judiciously to minimize visual clutter.

To underline text, use the <u> tag: 

<p>This text is <u>underlined</u> but not a link.</p>

Renders as:

This text is underlined but not a link.

To strike through text, use the <s> tag:

<p>This product is <s>$99.99</s> $79.99!</p>

Renders as:

This product is $99.99 $79.99!

You can also use the more semantic <del> tag to indicate deletion of content:

<p>This text has been <del>deleted</del>.</p>

Renders as:

This text has been deleted.

Superscript and Subscript Text

For mathematical equations, chemical formulas, and footnotes, superscript and subscript come in handy.

The <sup> tag displays text as superscript:

<p>The chemical formula for water is H<sup>2</sup>O.</p>

Renders as:

The chemical formula for water is H2O.

And the <sub> tag displays text as subscript:

<p>This is a footnote reference.<sub>1</sub></p>

Renders as:

This is a footnote reference.1

Combining HTML and CSS for Text Styling

While HTML tags provide quick and easy ways to format text, you can gain even more control by pairing them with CSS. This lets you fine-tune the appearance of your text, like the size, color, font, and more.

For example, let‘s say you want your <strong> elements to be bold, red, and slightly larger than the surrounding text. With CSS, it‘s simple:

strong {
  color: red;  
  font-size: 1.1em;
}

Now all your <strong> tagged content will have that distinct styling:

This text is bold, red, and slightly larger.

You can apply targeted styling to any HTML element with CSS, using tag selectors, classes, or IDs. This allows for some cool text effects:

This text is in a cursive font.

This text has a subtle shadow.

This text has a yellow highlight.

The possibilities are virtually endless! Experiment with combining different HTML tags and CSS properties to develop your unique text styling.

Accessibility and SEO Best Practices

As you dive into text formatting, be sure to keep accessibility top of mind. Some key tips:

  • Use semantic HTML whenever possible (<strong> instead of <b>, for example) to convey meaning and relationships.
  • Ensure sufficient color contrast between text and background, especially for important content. Tools like WebAIM‘s Color Contrast Checker can help.
  • Avoid using styling alone to communicate vital information. For example, don‘t write "Required fields are in red." Instead, use the <strong> tag or an asterisk.

It‘s also wise to consider SEO as you style text. While text formatting is just one of many ranking factors, semantic HTML can help signal your content‘s relevance and value to search engines.

Plus, better readability and scannability can improve user engagement, which may indirectly boost your rankings. As search expert Kristina Azarenko puts it, "Well-formatted, easy to understand, and logically structured content always wins."

Text Formatting Inspiration

Need some ideas for creatively styling your web text? Here are a few eye-catching examples:

  • Stripe: Stripe‘s site features crisp, bold headings paired with generous white space for a modern, readable aesthetic.
  • Dropbox: Dropbox combines colorful, italicized subheadings with clean body copy to organize content and add personality.
  • MailChimp: MailChimp uses playful typography, including script fonts and striking underlines, to bring warmth and whimsy to its marketing copy.
  • Apple: True to form, Apple keeps text styling minimal and sophisticated, with bold headlines and short, snappy body text to guide users‘ focus.

For even more text formatting inspiration, check out Typewolf‘s gallery of sites with great typography. And don‘t be afraid to try out unconventional styling techniques for added impact!

Conclusion

Effective text formatting is a powerful way to enhance your site‘s readability, accessibility, aesthetics, and user experience. By strategically applying HTML tags like <strong>, <em>, and more, along with custom CSS, you can create content that‘s both functional and attractive.

As you develop your text styling, remember these key takeaways:

  1. Use semantic HTML for meaningful markup
  2. Pair HTML with CSS for maximum style flexibility
  3. Keep accessibility and SEO in mind
  4. Apply text formatting judiciously – don‘t overdo it!
  5. Have fun exploring creative styling possibilities

Armed with these insights and techniques, you‘re ready to take your web content to the next level. So get out there and make your text stand out!

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