### Typo.css: Basic Styles for Web Typography

Source: https://github.com/sofish/typo.css/blob/master/typo.html

This CSS code provides fundamental styling rules for web pages, including background colors, margins, padding, and basic text formatting. It sets up a responsive layout for the body and styles elements like code blocks and italics.

```css
code {
  color:#1abc9c;
}
html {
  background:#eee;
}
body {
  width:90%;
  max-width: 960px;
  background:#fff;
  margin:3em auto 0;
  padding-top:2em;
  border:1px solid #ddd;
  border-width:0 1px;
}
pre {
  white-space:pre-wrap;
}
i.serif {
  text-transform:lowercase;
  color:#1abc9c;
}
:-moz-any(h1, h2, h3, h4, h5, h5) i.serif {
  text-transform: capitalize;
}
i.serif:hover {
  color:inherit;
}
#wrapper {
  padding:5% 10%;
  position:relative;
}
#tagline {
  color:#999;
  font-size:1em;
  margin:-2em 0 2em;
  padding-bottom:2em;
  border-bottom:3px double #eee;
}
#fork {
  position:fixed;
  top:0;
  right:0;
  _position:absolute;
}
#table {
  margin-bottom:2em;
  color:#888;
}
#github {
  position:absolute;
  top:1em;
}
#github iframe {
  display:inline;
  margin-right:1em;
}
@media only screen and (max-width: 640px) {
  table {
    word-break:break-all;
    word-wrap:break-word;
    font-size:12px;
  }
  .typo table th, .typo table td, .typo-table th, .typo-table td .typo table caption {
    padding: 0.5em;
  }
  #fork {
    display:none;
  }
}
```

--------------------------------

### Typo.css: Enhanced Typography Classes

Source: https://github.com/sofish/typo.css/blob/master/typo.html

This CSS code defines additional classes for enhanced typography in Typo.css. It includes styles for proper nouns (`.typo-u`), emphasis marks (`.typo-em`), clearfix for floats, and notes on handling Chinese/English line spacing, subscripts in IE, block spacing, input spacing, and default font color.

```css
/* Typo.css: Enhanced Typography Classes */
/* Proper Nouns (`.typo-u`): Underlined, recommended for backward compatibility as `u` is deprecated in HTML4 */
/* Emphasis Marks (`.typo-em`): Implemented using :after and :before pseudo-elements */
/* Clearfix (`.clearfix`): Consistent API with general CSS Resets */

/* Notes on Typography:
(1) Chinese/English mixed line-height/leading
(2) Sup/Sub display in IE
(3) Block/paragraph spacing consistency with design principles
(4) Input extra space issues
(5) Default font color, currently #333 for good cross-browser display */
```

--------------------------------

### Typo.css: Responsive Adjustments for Small Screens

Source: https://github.com/sofish/typo.css/blob/master/typo.html

This CSS media query targets screens with a maximum width of 640px to adjust table formatting. It enables word breaking and wrapping for table content and reduces the font size for better readability on smaller devices. It also hides the '#fork' element.

```css
@media only screen and (max-width: 640px) {
  table {
    word-break:break-all;
    word-wrap:break-word;
    font-size:12px;
  }
  .typo table th, .typo table td, .typo-table th, .typo-table td .typo table caption {
    padding: 0.5em;
  }
  #fork {
    display:none;
  }
}
```

--------------------------------

### Typo.css: Basic Tag Typography

Source: https://github.com/sofish/typo.css/blob/master/typo.html

This section details the typographical considerations for basic HTML tags within the Typo.css framework. It covers elements like headings, superscripts/subscripts, blockquotes, abbreviations, horizontal rules, lists, definition lists, form inputs, italics, emphasis, strong text, marked text, and small text.

```css
/* Typo.css: Basic Tag Typography Considerations */
/* Headings: Global size not forced, `.typo` content should be close to headings with appropriate size settings */
/* Sup/Sub: Maintain consistency with Microsoft Office Word */
/* Blockquote: Display/nesting styles */
/* Abbr: Underline on hover, help cursor */
/* HR: Correct padding and margin */
/* Lists (ul/ol/dl): No global list-style, correct alignment in `.typo` */
/* Def Lists (dl): Global padding/margin 0, correct alignment in `.typo` */
/* Options (input[type=radio, checkbox]): Centered with other form elements */
/* Italic (i): Only one italic style, em and cite display as roman */
/* Emphasis (em): Global roman, consistent bold style with b/strong in `.typo` */
/* Strong/B: Bold display */
/* Mark: Similar to highlighter */
/* Print (small): 80% size, light gray color */
/* Table: No global borders, table borders, light gray header background */
/* Code (pre/code): Courier-like font, consistent display with serif */
```

--------------------------------

### Typo.css: Special Symbols Styling

Source: https://github.com/sofish/typo.css/blob/master/typo.html

This CSS snippet addresses the styling of special symbols and punctuation within Typo.css. It ensures consistent display for emphasis dots, proper noun underlines, em dashes, and the Chinese Yuan symbol.

```css
/* Typo.css: Special Symbols Styling */
/* Emphasis Dots: Implemented via :after/:before for progressive enhancement */
/* Proper Noun Underline: Using `u` tag or `.typo-u` class */
/* Em Dash: Single dash, not two */
/* Chinese Yuan Symbol (¥): Two parallel lines or `¥` HTML entity */
/* Strikethrough (deleted): Consistent display across browsers, correct mixed Chinese/English rendering */
```

--------------------------------

### Typo.css: Heading and Block Element Styling

Source: https://github.com/sofish/typo.css/blob/master/typo.html

This CSS code styles headings (h1-h6) and common block elements like paragraphs, preformatted text, lists, and horizontal rules. It ensures proper spacing and readability, particularly for Chinese text, by adjusting margins and line heights.

```css
/* 标题应该更贴紧内容，并与其他块区分，margin 值要相应做优化 */
h1,h2,h3,h4,h5,h6 {
    line-height:1;font-family:Arial,sans-serif;margin:1.4em 0 0.8em;
}
h1{font-size:1.8em;}
h2{font-size:1.6em;}
h3{font-size:1.4em;}
h4{font-size:1.2em;}
h5,h6{font-size:1em;}

/* 现代排版：保证块/段落之间的空白隔行 */
.typo p, .typo pre, .typo ul, .typo ol, .typo dl, .typo form, .typo hr {
    margin:1em 0 0.6em;
}
```

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