-webkit-transition: background 300ms ease-in 2s; /* property duration timing-function delay */
-moz-transition: background 300ms ease-in 2s;
-o-transition: background 300ms ease-in 2s;
transition: background 300ms ease-in 2s;
 
 
-webkit-transition-property: background;
-webkit-transition-duration: 300ms;
-webkit-transition-timing-function: ease-in;
-webkit-transition-delay: 100ms;
-moz-transition-property: background;
-moz-transition-duration: 300ms;
-moz-transition-timing-function: ease-in;
-moz-transition-delay: 100ms;
-o-transition-property: background;
-o-transition-duration: 300ms;
-o-transition-timing-function: ease-in;
-o-transition-delay: 100ms;
transition-property: background;
transition-duration: 300ms;
transition-timing-function: ease-in;
transition-delay: 100ms;