623lesson summary and review, 446–447, 456–457
author-defined attributes, 39
autofocus Boolean attribute, 321
autoIncrement key generator, 592
autoplay attribute
<audio> element, 445
<video> element, 441B
<b> element
annotating content, 213–214
described, 31, 33, 213
background-color property (CSS), 139
backslash (\) character, 69
backward compatibility
of browsers, 30
of CSS3, 138
banner class, 212
<base> element, 33, 38
base classes, 262
<bb> element, 33
<bdo> element, 33
::before pseudo element, 150
:before selector, 224
beforeonload event, 117
beforeprint event, 117
Berkeley Software Distribution (BSD) license, 438
big web services, 364, 366
binary operators, 70
Blank App template, 6–9, 14, 96
Blend for Visual Studio 2012
artboard, 15
Assets panel, 14–15, 17
CSS Properties tab, 15–16
described, 13–16
Device panel, 15, 17–18
HTML Attributes tab, 15–16
lesson summary and review, 19–20, 27SignalR library support, 423
asterisk (*) symbol, 147, 155
async attribute (