hr {
    -moz-border-bottom-colors: none;
    -moz-border-image: none;
    -moz-border-left-colors: none;
    -moz-border-right-colors: none;
    -moz-border-top-colors: none;
    border-color: #EEEEEE -moz-use-text-color #FFFFFF;
    border-style: solid none;
    border-width: 1px 0;
    margin: 18px 0;
}