css_tricks.css

/* coordinates */
T R B L /* 4 elems */
T RL B /* 3 elems */
TB RL /* 2 elems */
TRBL /* 1 elem */

/*center div*/
margin: 0 auto;

* /* any element */
E /* an element of type E */
E[foo] /* an E element with a "foo" attribute */
E[foo="bar"] /* an E element whose "foo" attribute value is exactly equal to "bar" */
E[foo~="bar"] /* an E element whose "foo" attribute value is a list of whitespace-separated values, one of which is exactly equal to "bar" */
E[foo^="bar"] /* an E element whose "foo" attribute value begins exactly with the string "bar" */
E[foo$="bar"] /* an E element whose "foo" attribute value ends exactly with the string "bar" */
E[foo*="bar"] /* an E element whose "foo" attribute value contains the substring "bar" */
E[foo|="en"] /* an E element whose "foo" attribute has a hyphen-separated list of values beginning (from the left) with "en" */
E[rel="handsome"][title^="Important"] /* you can combine them */
E:root /* an E element, root of the document */
E:nth-child(n) /* an E element, the n-th child of its parent */
E:nth-last-child(n) /* an E element, the n-th child of its parent, counting from the last one */
E:nth-of-type(n) /* an E element, the n-th sibling of its type */
E:nth-last-of-type(n) /* an E element, the n-th sibling of its type, counting from the last one */
E:first-child /* an E element, first child of its parent */
E:last-child /* an E element, last child of its parent */
E:first-of-type /* an E element, first sibling of its type */
E:last-of-type /* an E element, last sibling of its type */
E:only-child /* an E element, only child of its parent */
E:only-of-type /* an E element, only sibling of its type */
E:empty /* an E element that has no children (including text nodes) */
E:visited /* an E element being the source anchor of a hyperlink of which the target is not yet visited (:link) or already visited (:visited) */
E:focus /* an E element during certain user actions */
E:target /* an E element being the target of the referring URI */
E:lang(fr) /* an element of type E in language "fr" (the document language specifies how language is determined) */
E:disabled /* a user interface element E which is enabled or disabled */
E:checked /* a user interface element E which is checked (for instance a radio-button or checkbox) */
E::first-line /* the first formatted line of an E element */
E::first-letter /* the first formatted letter of an E element */
E::before /* generated content before an E element */
E::after /* generated content after an E element */
E.warning /* an E element whose class is "warning" (the document language specifies how class is determined). */
E#myid /* an E element with ID equal to "myid". */
E:not(s) /* an E element that does not match simple selector s */
E F /* an F element descendant of an E element */
E > F /* an F element child of an E element */
E + F /* an F element immediately preceded by an E element */
E ~ F /* an F element preceded by an E element */


rounded corners {
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    border-radius: 5px;
}

/* clearfix */
.group:before,
.group:after {
  content: "";
  display: table;
}
.group:after {
  clear: both;
}
.group {
  zoom: 1;
}

box shadow { /* x-offset y-offset blur color */
    -moz-box-shadow: inset 4px 4px 8px #222;
    -webkit-box-shadow: inset 4px 4px 8px #222;
    box-shadow: inset 4px 4px 8px #222;
}

text shadow { /* x-offset y-offset blur color */
    text-shadow: 4px 4px 8px #222;
}

img:hover {
  -o-transform: scale(1.5);
  -moz-transform: scale(1.5);
  -webkit-transform: scale(1.5);
  transform: scale(1.5);
}

multiple images {
  background: center top url("bg.png") repeat;
  background: url("city.png") no-repeat center top, url(bg.png);
}

off white background{
  background: #f4f4f4 url(../images/background.png);
}

/* don't set stroke to text or you'll get fuzzy text, set it to auto */