第 11 章 定位 Positioning 11.1 Basic Concepts Types of Positioning The Containing Block 11.2 Offset Properties 11.3 Width and Height Setting Width and Height Limiting Width and Height 11.4 Content Overflow and Clipping Overflow 11.5 Element Visibility 11.6 Absolute Positioning Containing Blocks and Absolutely Positioned Elements Placement and Sizing of Absolutely Positioned Elements Auto-edges Placing and Sizing Nonreplaced Elements Placing and Sizing Replaced Elements Placement on the Z-Axis 11.7 Fixed Positioning 11.8 Relative Positioning 11.9 Sticky Positioning 11.10 Summary