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Post on 03-May-2020
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Web Presentation (CSS)for Layout
History of Webpage Layout
• The World Wide Web: system of sharing “documents” …remember: academic research papers!• No need for columnar layouts• Tables (for tabular data)• Floats (for pushing images left or right and having text wrap around)
• No concept of…• Banners• Navigation bars• Sidebars• Headers, footers, et cetera
The Beginnings of Columnar layout
A columnar layout is any layout where some of the content is positioned side-by-side
How to pull this off?
NY Times Snowfall• 2013• Long scrolly pages• Fixed navigation• Viewport-wide
background video• Behaviors-on-scroll• Parallax
"Contatined" Content
.container {
margin: 0 auto;
width: 90%;
max-width: 960px;}
<body>
<div class="container">Hello World!
</div><!--.container-->
</body>
HTML
CSS
Header
Navigation
Footer
ContentSidebar
The Classic “C-clamp”
All content “constrained” to stay in the middle of the viewport
History of web page layout0. natural document flow (HTML)1.table (HTML)2.float (CSS)3.inline-block (CSS)4.table (CSS)5.flex (CSS)6.grid (CSS) (new in 2017)
These use the CSS “display:” property
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