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Today’s Agenda

Today’s Agenda. Advanced CSS Techniques Floating Z-index Centering Sliding Doors Fluid Layouts CSS3 Advanced CSS Lab Mini Project #2. Web Design: Basic to Advanced Techniques. Web Design:. Fall 2010 Mondays 7-9pm 200 Sutardja -Dai Hall. Basic to Advanced Techniques.

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Today’s Agenda

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  1. Today’s Agenda • Advanced CSS Techniques • Floating • Z-index • Centering • Sliding Doors • Fluid Layouts • CSS3 • Advanced CSS Lab • Mini Project #2 Web Design:Basic to Advanced Techniques

  2. Web Design: Fall 2010 Mondays 7-9pm 200 Sutardja-Dai Hall Basic to Advanced Techniques Advanced CSS Techniques Web Design:Basic to Advanced Techniques

  3. Floating • How can we achieve this kind of horizontal layout? (divs usually stack vertically)

  4. Floating • Floating an an element takes it out of the flow of the document and pushes it left or right • CSS property float • Values: right or left

  5. Floating • If you float three elements in the same direction, they will stack

  6. Floating • But, if there isn’t enough room:

  7. Floating • Important properties: • Floated elements should have a specified width • Floating removes the element from the flow of the layout • Other elements have no idea its there (except for text) float: left;

  8. Clearing Floats • CSS property clear • Set this property on the element BELOW • Values: • left, right: push the element down below any left/right floated elements • both: push element down below any floated elements float: left; float: left; clear: left;

  9. Z-index

  10. Z-Index • Property to specify which elements “go on top” • z-index: [integer value]; z-index: 15;

  11. Centering • Centering text in a div • text-align: center; • Horizontally centering a div • margin: auto; • Vertically centering text in a div • line-height: [same height as div]; hello hello

  12. Background Position • Specify where you want the background positioned • background-position: [horizontal] [vertical]; • Left/right, top/bottom, center • Using percentages • 50% 50% • Using pixel values • 10px 5px

  13. Sliding Doors • Last week: • Dynamic width buttons

  14. Sliding Doors • Another technique to create dynamic width buttons • Think of sliding doors that slide out to cover more space

  15. Sliding Doors • Left background image on the left element • Right background image on the right element • Background positioned on the top right

  16. Fluid Layouts • Layouts expand/contract fluidly with the size of the browser • Percentage widths instead of using fixed pixel widths • width: 100%; • Fluid Layouts vs. Fixed Layouts • More control over fixed layouts • Fluid layouts more user-friendly because it fits the user’s screen better

  17. CSS3 • Cool effects now EASY with CSS3 • Gradients • Drop shadows • Rounded corners • Multi column layouts • Media queries • Transforms/Animations

  18. CSS3 Gradients • -moz-linear-gradient( [<point> || <angle>,]? <stop>, <stop> [, <stop>]* ) • https://developer.mozilla.org/en/CSS/-moz-linear-gradient • -webkit-gradient(<type>, <point> [, <radius>]?, <point> [, <radius>]? [, <stop>]*) • http://webkit.org/blog/175/introducing-css-gradients/ • Resources: • http://www.westciv.com/tools/gradients/

  19. CSS3 Drop Shadows • CSS3 Drop Shadows • Box-shadows • -moz-box-shadow: [horizontal] [vertical] [blur] [color]; • -webkit-box-shadow: [horizontal] [vertical] [blur] [color]; • Text-shadows • text-shadow: [horizontal] [vertical] [blur] [color];

  20. CSS3 Rounded Corners • Border-radius property • -moz-border-radius: 5px; • -webkit-border-radius: 5px; • border-radius: 5px; • Degrades gracefully • Rounded corners just don’t show up in browsers that don’t support it

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