/***** Selector Hacks ******/

/* IE6 and below */

* html #uno  { color: red }

/* IE7 */

*:first-child+html #dos { color: red } 

/* IE7, FF, Saf, Opera  */

html>body #tres { color: red }

/* IE8, FF, Saf, Opera (Everything but IE 6,7) */

html>/**/body #cuatro { color: red }

/* Opera 9.27 and below, safari 2 */

html:first-child #cinco { color: red }

/* Safari 2-3 */

html[xmlns*=""] body:last-child #seis { color: red }

/* safari 3+, chrome 1+, opera9+, ff 3.5+ */

body:nth-of-type(1) #siete { color: red }

/* safari 3+, chrome 1+, opera9+, ff 3.5+ */

body:first-of-type #ocho {  color: red }

/* saf3+, chrome1+ */

@media screen and (-webkit-min-device-pixel-ratio:0) {

 #diez  { color: red  }

}

/* iPhone / mobile webkit */

@media screen and (max-device-width: 480px) {

 #veintiseis { color: red  }

}

/* Safari 2 - 3.1 */

html[xmlns*=""]:root #trece  { color: red  }

/* Safari 2 - 3.1, Opera 9.25 */

*|html[xmlns*=""] #catorce { color: red  }

/* Everything but IE6-8 */

:root *> #quince { color: red  }

/* IE7 */

*+html #dieciocho {  color: red }

/* Firefox only. 1+ */

#veinticuatro,  x:-moz-any-link  { color: red }

/* Firefox 3.0+ */

#veinticinco,  x:-moz-any-link, x:default  { color: red  }

/***** Attribute Hacks ******/

/* IE6 */

#once { _color: blue }

/* IE6, IE7 */

#doce { *color: blue; /* or #color: blue */ }

/* Everything but IE6 */

#diecisiete { color/**/: blue }

/* IE6, IE7, IE8 */

#diecinueve { color: blue\9; }

/* IE7, IE8 */

#veinte { color/*\**/: blue\9; }

/* IE6, IE7 -- acts as an !important */

#veintesiete { color: blue !ie; } /* string after ! can be anything */