CSS - What Is the Text Paragraph Formatting Model

What Is the Text Paragraph Formatting Model

Q

What Is the Text Paragraph Formatting Model? - CSS Tutorials - HTML Formatting Model: Block, Inline and Floating Elements

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A

A text paragraph is divided into lines to for a stack of line boxes. Each line box is a rectangular with a line height and sharing the same width as the content box of the enclosing block element.

The default line height is the text font size plus a leading space with a half leading space placed on top of the text, and another half below the text.

Line height can be changed through the CSS style property, line-height, as shown in the following tutorial exercise:

<html><head>
<style type="text/css">
  H1 {font-size: 20px}
  DIV.page {width: 425px; border: 1px solid black}
  TABLE#out {background-color: #ffdddd}
  TD#box {border: 1px solid black}
  P#box {width: 300px; height: 300px; 
    font-size: 14px; 
    line-height: 30px;
    background-color: #ddddff}
  TD.legend#w30 {height: 30px; background-color: #ffffff}
  TD.legend#g30 {height: 30px; background-color: #dddddd}
</style>
</head><body><div class="page">
<H1>Text Paragraph Formatting Model</H1>
<table id=out><tr>
<td id=box><p id=box>
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</p></td>
<td valign=top><table cellpadding=0 cellspacing=0>
<tr><td class=legend id=g30>- line 1</td></tr>
<tr><td class=legend id=w30>- line 2</td></tr>
<tr><td class=legend id=g30>- line 3</td></tr>
<tr><td class=legend id=w30>- line 4</td></tr>
<tr><td class=legend id=g30>- line 5</td></tr>
<tr><td class=legend id=w30>- line 6</td></tr>
</table></td>
</tr></table>
<p align="right">By FYIcenter.com</p>
<div></body></html>

Save this document as paragraphModel.html, and view it with a browser, you will see that the text paragraph is wrapped into line boxes, with text placed in the middle of each line box:

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