If you're talking about computational efficiency (i.e. browser performance), then I suggest sticking with what you already have. Otherwise...
If you know the class
attribute always starts with the substring myTable
, you can just use an attribute selector:
[class^="myTable"] a
{
text-decoration: underline;
}
If you can't guarantee that you need something that's a little more complex:
[class^="myTable"] a, [class*=" myTable"] a
{
text-decoration: underline;
}
An explanation is offered here. If you find this syntax arcane, then I'll suggest again going with what you already have as it's the simplest.
Alternatively, modify your HTML to include a common class that you can select by. This will let you simplify your CSS even more from what you already have.