admin-ol/css/iconMenu/style.css

@font-face {
    font-family: 'iconMenu';
    src:    url('fonts/iconMenu.eot?80x8hm');
    src:    url('fonts/iconMenu.eot?80x8hm#iefix') format('embedded-opentype'),
        url('fonts/iconMenu.ttf?80x8hm') format('truetype'),
        url('fonts/iconMenu.woff?80x8hm') format('woff'),
        url('fonts/iconMenu.svg?80x8hm#iconMenu') format('svg');
    font-weight: normal;
    font-style: normal;
}

[class^="icon-"], [class*=" icon-"] {
    /* use !important to prevent issues with browser extensions that change fonts */
    font-family: 'iconMenu' !important;
    speak: none;
    font-style: normal;
    font-weight: normal;
    font-variant: normal;
    text-transform: none;
    line-height: 1;

    /* Better Font Rendering =========== */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.icon-icon-drawer:before {
    content: "\41";
}
.icon-icon-user:before {
    content: "\42";
}
.icon-icon-earth:before {
    content: "\43";
}