css - how to remove inherited style - css

Question

Please see this : http://jsfiddle.net/ymSpY/. If you can see <td> has an inner table. The inner table inherits the style from the parent table. The inner table has borders. How can I make the border invisible or remove it? As you can see the markup of the inner table it has style="border-collapse: collapse;" and I even tried border=0 but it doesn't work. The border of the inner/child table is still there.

Answer 1

You could apply your rules only to immediate children:
.dataTable > thead,
.dataTable > thead > tr > th,
.dataTable > tbody,
.dataTable > tbody > tr > td {
padding: 2px;
border-top: 1px solid #F5F2EF;
border-left: 1px solid #F5F2EF;
border-bottom: 1px solid #F5F2EF;
border-right: 1px solid #F5F2EF;
}
This way, the border rules don't trickle down to the nested table. The only other option is to do a whole lot of resetting, which will quickly cause your CSS to turn into kudzu.
Demo: http://jsfiddle.net/ymSpY/10/

Answer 2

I'd probably create a separate class for the child table, but short of that, here is one solution:
.dataTable td table, .dataTable td table tbody, .dataTable td table td {
border:none;
}
http://jsfiddle.net/ymSpY/6/
EDIT: here's one with a class defined for a child table, this may give you more flexibility once you start adding other elements to your main dataTable.
http://jsfiddle.net/ymSpY/11/

Answer 3

I'm confused. You have changed the colour, for the borders, so why don't you just set them to 0 instead?
.dataTable td table td {
border-top: 0;
border-left: 0;
border-bottom: 0;
border-right: 0;
}
Example http://jsfiddle.net/ymSpY/4/

Answer 4

This works assuming you're using bootstrap to style your ui.
table.noborder td {
border: none !important;
}
table.noborder td table.table td {
border: 1px solid #dee2e6 !important;
}