how to add border around text in cs code example

Example 1: css text outline

/* You have 2 options
   The first is experimental */

/* text-stroke */
#example {
	font-size: 1em;
	-webkit-text-stroke: 1px #000000;
}

/* Use 4 shadows
   Probably best to use this until the above is standardised */
#example {
	font-size: 1em;
	text-shadow: -1px -1px 0 #000, 1px -1px 0 #000, -1px 1px 0 #000, 1px 1px 0 #000;
}

Example 2: how to make border for letters in css

h1 {
    /* 1 pixel black shadow to left, top, right and bottom */
    text-shadow: -1px 0 black, 0 1px black, 1px 0 black, 0 -1px black;

    font-family: sans; color: yellow;
}