.fdown {
        background-image: url(../images/gui/index3_5x2.png);
    }
    .fmedio {
        background-image: url(../images/gui/fmedio.png);
    }
    .ftop {
        background-image: url(../images/gui/index3_1x4.png);
    }
    .fmenu {
        background-image: url(../images/gui/fmenu.png);
    }
    td {
        font-family: Arial, Helvetica, sans-serif;
        font-size: 11px;
    }
    .fizq {
        background-image: url(../images/gui/fizq.png);
    }
    .fizq-menu {
        background-image: url(../images/gui/fizq-menu.png);
    }
    .menuimg {
        background-image: url(../images/gui/index_2x1.png);
    }
    .fder {
        background-image: url(../images/gui/fder.png);
    }