The CSS3 operators ^,
$, and * respectively match the start, end, or any
portion of a string.
The property you use to specify the size of a background image
is background-size, like this:
background-size:800px
600px;.
You can specify the radius of a border using the border-radius property, like this: border-radius:20px;.
To flow text over multiple columns, you use the column-count, column-gap, and column-rule properties or their
browser-specific variants, like this: column-count:3; column-gap:1em; column-rule:1px solid
black;.
The four functions with which you can specify CSS colors are
hsl, hsla, rgb, and rgba. For example: color:rgba(0%,60%,40%,0.4);.
To create a gray text shadow under some text, offset diagonally
to the bottom right by 5 pixels, with a blurring of 3 pixels, you
would use this declaration: text-shadow:5px
5px 3px #888;.
You can indicate with an ellipsis that text is truncated using
this declaration: text-overflow:ellipsis;.
To include a Google web font in a web page, first select it from
http://google.com/webfonts. Then, assuming, for
example, you chose “Lobster,” you include it in a <link> tag, like this: <link
href='http://fonts.googleapis.com/css?family=Lobster' />.
You must also refer to the font in a CSS declaration such as this:
h1 { font-family:'Lobster', arial, serif;
}.
The CSS declaration you would use to rotate an object by 90
degrees is transform:rotate(90deg);.
To set up a transition on an object so that when any of its
properties are changed the change will transition immediately in a
linear fashion over the course of half a second, you would use this
declaration: transition:all .5s
linear;.