Headings
All HTML headings, <h1> through <h6>, are available. .h1 through .h6 classes are also available, for when you want to match the font styling of a heading but still want your text to be displayed inline.
Create lighter, secondary text in any heading with a generic <small> tag or the .small class.
Body copy
Bootstrap’s global default font-size is 14px, with a line-height of 1.428. This is applied to the <body> and all paragraphs. In addition, <p> (paragraphs) receive a bottom margin of half their computed line-height (10px by default).
Lead body copy
Make a paragraph stand out by adding .lead.
Built with Less
The typographic scale is based on two Less variables in variables.less: @font-size-base and @line-height-base. The first is the base font-size used throughout and the second is the base line-height. We use those variables and some simple math to create the margins, paddings, and line-heights of all our type and more. Customize them and Bootstrap adapts.
Inline text elements
Marked text
For highlighting a run of text due to its relevance in another context, use the <mark> tag.
Deleted text
For indicating blocks of text that have been deleted use the <del> tag.
Strikethrough text
For indicating blocks of text that are no longer relevant use the <s> tag.
Inserted text
For indicating additions to the document use the <ins> tag.
Underlined text
To underline text use the <u> tag.
Make use of HTML’s default emphasis tags with lightweight styles.
Small text
For de-emphasizing inline or blocks of text, use the <small> tag to set text at 85% the size of the parent. Heading elements receive their own font-size for nested <small> elements.
You may alternatively use an inline element with .small in place of any <small>.
Bold
For emphasizing a snippet of text with a heavier font-weight.
Italics
For emphasizing a snippet of text with italics.
Alignment classes
Easily realign text to components with text alignment classes.
Transformation classes
Transform text in components with text capitalization classes.
Abbreviations
Stylized implementation of HTML’s <abbr> element for abbreviations and acronyms to show the expanded version on hover. Abbreviations with a title attribute have a light dotted bottom border and a help cursor on hover, providing additional context on hover and to users of assistive technologies.
Basic abbreviation
Initialism
Add .initialism to an abbreviation for a slightly smaller font-size.
Addresses
Present contact information for the nearest ancestor or the entire body of work. Preserve formatting by ending all lines with <br>.
Blockquotes
For quoting blocks of content from another source within your document.
Default blockquote
Wrap <blockquote> around any HTML as the quote. For straight quotes, we recommend a <p>.
Blockquote options
Style and content changes for simple variations on a standard <blockquote>.
Naming a source
Add a <footer> for identifying the source. Wrap the name of the source work in <cite>.
Alternate displays
Add .blockquote-reverse for a blockquote with right-aligned content.
Lists
Unordered
A list of items in which the order does not explicitly matter.
Ordered
A list of items in which the order does explicitly matter.
Unstyled
Remove the default list-style and left margin on list items (immediate children only). This only applies to immediate children list items, meaning you will need to add the class for any nested lists as well.
Inline
Place all list items on a single line with display: inline-block; and some light padding.
Description
A list of terms with their associated descriptions.
Horizontal description
Make terms and descriptions in <dl> line up side-by-side. Starts off stacked like default <dl>s, but when the navbar expands, so do these.