Pasar font

Tomad, aqui os dejo un codigo. a ver si me podeis cambiar todos los tipos de letra a tahoma que yo con el font-family ese no me aclaro....

CODIGO:

/* ----------------------------------------------
Gutenberg CSS Theme for WordPress - http://wordpress.org/
By Serge K. Keller - http://www.almaren.ch
v1.0 - February 2004 - Validates as CSS3
Designed for Alex King's WordPress CSS Style Competition - http://www.alexking.org/
Licensed under the GNU GPL - See http://www.gnu.org/ for details
---------------------------------------------- */
body {
margin : 0;
padding : 0;
background : #eee;
color : #111;
font-size: 0.8em/1.2em;
font-family: 'Lucida Grande', Verdana, Geneva, Lucida, Helvetica, Arial, sans-serif;
}

#rap {
margin : 10px auto;
padding : 0;
width : 750px;
border : 1px solid #aaa;
background : #fff;
overflow: auto;
}

#header {
height: 50px;
background: #fff url('images/gutenberg.gif') no-repeat top right;
border-bottom : 1px solid #aaa; padding-left:25px; padding-right:10px; padding-top:30px; padding-bottom:5px
}

#header a {
color: #111;
text-decoration: none;
}

#header h1 {
color: #666;
font-size: 140%;
font-family: Georgia, New York'', Utopia, Times New Roman'', Times, serif;
font-weight : bold;
text-align : left
}

#content {
width: 500px;
margin: 0;
text-align: right;
float: left;
background-color: #fff;
padding: 10px 25px;
}

#menu {
margin: 0;
padding: 0 15px 10px 10px;
width: 150px;
text-align: left;
background: #fff;
float: right;
overflow: hidden;
}

.credit, credit cite {
clear: both;
margin: 15px 0 0 0;
padding: 3px;
background: #ddd;
border-top: solid 1px #666;
color: #111;
font-size: 90%;
text-align: center;
}

.credit cite {
color: #111;
font-size: 90%;
font-style: normal;
}

.credit a, .credit a:hover {
color: #006;
text-decoration: none;
}

h1, h2, h3 {
font-family : Georgia, New York'', Utopia, Times New Roman'', Times, serif;
}

h2 {
font-size: 130%;
letter-spacing: .07em;
}

h3{
font-size: 120%;
}

p, li, .feedback {
font: 95%/175% 'Lucida Grande', Verdana, Geneva, Lucida, Helvetica, Arial, sans-serif;
letter-spacing: -1px;
}

a {
color: #036;
text-decoration: none;
}

a:link {
font-weight: bold;
}

a:visited {
font-weight: normal;
}

a:hover {
color: #900;
text-decoration: underline;
}

a:active {
text-decoration: underline overline;
}

a img {
border: none;
}

/* ----------------------------------------------
Micro-icons (CSS3 only, but should degrade gracefully
Info: http://my-dimension.com/article/mini_icons/
Icons: http://www.web-graphics.com/mtarchive/000305.php#000305
---------------------------------------------- */
a[href^="mailto:"] {
background: url('images/icons/email.gif') no-repeat 100% 50%;
padding-right: 10px;
white-space: nowrap
}

div.storycontent a[href^="http:"] {
background: url('images/icons/outside.gif') no-repeat 100% 50%;
padding-right: 10px;
white-space: nowrap
}

/* This avoids the icon being shown on internal links. Change to suit your taste /
div.storycontent a[href^{="http://alexking.org"],}
div.storycontent a[href^{="http://www.alexking.org"]} {
background: inherit;
padding-right: 0px;
}
/---------------------------------------------- */

#menu form {
margin: 0;
}

#menu input {
background: #eee;
border: 1px solid #111;
letter-spacing: -0.05em;
}

#menu ul {
margin: 0;
padding: 0 10px 0 0;
list-style-type: none;
color: #111;
}

#menu ul li {
font-family: 'Lucida Grande', Verdana, Geneva, Lucida, Helvetica, Arial, sans-serif;
font-weight: bold;
margin: 10px 0 10px 0;
border-bottom : 1px #eee;
}

#menu ul ul {
list-style-type: none;
font-variant: normal;
font-weight: normal;
line-height: 100%;
margin: 0;
padding: 0;
text-align: left;
}

#menu ul ul li {
margin: 0;
font-family: 'Lucida Grande', Verdana, Geneva, Lucida, Helvetica, Arial, sans-serif;
font-weight: normal;
padding-left: 8px;
}

#menu ul ul li a {
text-decoration: none;
}

#search, #calendar, #other {
/* display: none;*/
}

form {
margin: 0;
padding: 0;
}

input, textarea {
background-color: #eee;
border: 1px solid #aaa;
font-size:95%;
}

blockquote {
font-size: 90%;
color: #777;
padding-left: 23px;
background: url('images/blockquote.gif') no-repeat 0 3px;
}

cite {
font-size: 90%;
font-style: italic;
color: #69c;
}

code {
font-style: normal;
color: #c30;
padding-left: 15px;
background: url('images/code.gif') no-repeat 0 3px;
font-family : Fixed, 'Courier New', Courier, monospace
}

acronym, abbr {
border-bottom : 1px dashed #aaa;
cursor : help;
font-size: 90%;
letter-spacing: .07em;
}

span.caps {
font-size: 90%;
font-variant : small-caps;
}

li {
margin: 0;
padding: 0;
}

.post {
text-align: left;
}

.storytitle {
margin: 0;
padding: 0;
font-size: 130%;
/letter-spacing: .04em;/
font-family: Georgia, New York'', Utopia, Times New Roman'', Times, serif;
font-weight: normal
}

.storytitle a {
text-decoration: none;
}

.meta {
font-size: 85%;
}

.meta, .meta a {
color: #777;
font-weight: normal;
letter-spacing: 0;
}

.meta ul {
display: inline;
margin: 0;
padding: 0;
list-style: none;
}

.meta li {
display: inline;
}

.feedback {
color: #ccc;
text-align: left;
}

ol#comments li p {
font-size: 100%;
}

#commentform input, #commentform textarea {
background: #fff;
border: 1px solid #aaa;
}

#commentform textarea {
width: 100%;
}

#wp-calendar {
border: 1px solid #aaa;
empty-cells: show;
margin: 0;
width: 90%;
}

#wp-calendar #next a {
padding-right: 10px;
text-align: right;
}

#wp-calendar #prev a {
padding-left: 10px;
text-align: left;
}

#wp-calendar a {
display: block;
text-decoration: none;
}

#wp-calendar a:hover {
background: #eee;
color: #900;
}

#wp-calendar caption {
color: #111;
font-weight: bold;
text-align: center;
}

#wp-calendar td {
color: #777;
font-family: 'Lucida Grande', Verdana, Geneva, Lucida, Helvetica, Arial, sans-serif;
letter-spacing: normal;
padding: 2px 0;
text-align: center;
}

#wp-calendar td.pad:hover {
background: #fff;
}

#wp-calendar td:hover, #wp-calendar #today {
background: #eee;
color: #111;
}

#wp-calendar th {
font-style: normal;
text-transform: capitalize;
}

<U>GRACIAS<B><I>