I want to change the color of title by using a separate CSS file. My styling code is like below:

```
<ul class="nav nav-tabs">
        <li><a href="#Organization" data-toggle="tab">Organization</a></li>

```

and here is the styling code:

```
 .ul .nav .nav-tabs .li .a{
 color:red;
 }

```

Please help. I could not find the correct way