td.upred,
td.downred,
td.downgreen,
td.upgreen {
    padding-left: 20px !important;
    background-repeat: no-repeat !important;
    background-position-x: 4px !important;
}

td.upred {
    background-image: url(images/var_up_red.png) !important;
}
td.upgreen {
    background-image: url(images/var_up_green.png) !important;
}
td.downgreen {
    background-image: url(images/var_down_green.png) !important;
}
td.downred {
    background-image: url(images/var_down_red.png) !important;
}