css3 - border-radius兼容性问题

Question

想设置table的四个角是圆弧状，但是下边的两个角在火狐中无法显示出来。在谷歌中可以正常显示

table上部分的代码：`<thead>

                    <th class="col1 header radius_t">table header</th>
                    <th class="col2 header">th2</th>
                    <th class="col3 header radius_r">th3</th>
                </thead>`

table下边的代码：

<tr class="dan rad_bot">
                            <td class="col1 radius_l">row seven</td>
                            <td class="col2">val</td>
                            <td class="col3 radius_b">val</td>
                        </tr>

#r5 .radius_t{
    border-radius: 5px 0 0 0;
}

#r5 .radius_r{
    border-radius: 0 5px 0 0;
}

#r5 .radius_b{
    -moz-border-radius-bottomright: 5px;
}

#r5 .radius_l{
    -moz-border-bottom-left-radius: 5px;
}

Answer 1

First of all, I have a suggestion. Don’t forget to include tr in thead
Secondly: the writing is in this order. Check to see if it is written correctly.
border-top-left-radius: 2em 0.5em;
border-top-right-radius: 1em 3em;
border-bottom-right-radius: 4em 0.5em;
border-bottom-left-radius: 1em 3em;