.item_spec_diametr:before, .item_spec_dlina:before, .item_spec_razmer:before, .item_spec_material:before {
    content:'';
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-right: 4px;
    background-repeat: no-repeat;
    vertical-align: middle;
    margin-top: -2px;
}
.item_spec_diametr:before {
    background-image: url('/resources/images/icons/spec_radius_16.png');
}
.item_spec_dlina:before {
    background-image: url('/resources/images/icons/spec_length_16.png');
    margin-right:0;
}
.item_spec_razmer:before {
    background-image: url('/resources/images/icons/spec_size_16.png');
    margin-right:0;
}
.item_spec_material:before {
    background-image: url('/resources/images/icons/spec_matherial_16.png');
}