Recuerda que la ruta debe ser relativa a tu css no a tu html.
Código CSS:
Ver original/* Generated by Font Squirrel (http://www.fontsquirrel.com) on November 9, 2012 */
@font-face {
font-family: 'code_lightregular';
src: url('../webfontkit/code_light-webfont.eot');
src: url('../webfontkit/code_light-webfont.eot?#iefix') format('embedded-opentype'),
url('../webfontkit/code_light-webfont.woff') format('woff'),
url('../webfontkit/code_light-webfont.ttf') format('truetype'),
url('../webfontkit/code_light-webfont.svg#code_lightregular') format('svg');
font-weight: normal;
font-style: normal;
}