XF 2.1 Customize h1 only on thread_view

[Biarritz64]

hi
i want to customize h1 but only on thread_view.
Is there a way to indicate the template element in css?

i try
.thread_view h1
{

};
does not work
thank you for your help

 

[Biarritz64]

ok i found the solution
[data-template="thread_view"]