dedecms网站后台加了表格前端不显示解决办法

table {
    -moz-border-bottom-colors: none;
    -moz-border-left-colors: none;
    -moz-border-right-colors: none;
    -moz-border-top-colors: none;
    border-collapse: collapse;
    border-color: #623F20;
    border-image: none;
    border-style: solid;
    border-width: 1px 0 0 1px;
    text-align: center;
}
table td, table th {
    -moz-border-bottom-colors: none;
    -moz-border-left-colors: none;
    -moz-border-right-colors: none;
    -moz-border-top-colors: none;
    border-color: #623F20;
    border-image: none;
    border-style: solid;
    border-width: 0 1px 1px 0;
    padding: 3px;
}