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The Web Wizard’s Guide To DHTML and CSS

Explore techniques to create dynamic visibility applications in DHTML and CSS, including drop-down menus, collapsible menus, and controlling image visibility. Learn to hide content off-screen, create sliding menus, and simulate GUI menus with enhanced styling.

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The Web Wizard’s Guide To DHTML and CSS

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  1. The Web Wizard’s Guide To DHTML and CSS Chapter 5 Creating Dynamic Visibility Applications

  2. Chapter Objectives • To use off-window locations to control visibility • To create dropdowndrop-down menus with the visibility property • To create collapsible menus with the display property • To control how much of an image is visible

  3. Hiding Content Off-Screen:A Sliding Menu • Create two side-by-side divs • The left div contains links • The right div opens and closes the menu • Absolute position both divs to hide left div off-screen • Add scripting to move right div on screen • Enhance with setCursor() and setBackground()

  4. Drop-Down Menus • Simulate GUI Menus • Absolute position limits placement to top • Use relative position for topmost div • Drop-down menu in an invisible nested div • Enhance with color and cursor changes

  5. Collapsible Menus • Simulate hierachical file trees • Set display to none to hide menu • Set display to block to show menu • Enhance with text node substitution • Enhance with cursor and color changes

  6. Dynamic Clipping • Control visible portion of content • Use the clip property of the style object

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