styling using attribute selector on Angular's ng attributes

[Paradoks]

Is it bad practice to style an element based on Angular's ng attributes? Why or why not? Please explain your answer.Example:\[code\]<!-- HTML --><ul ng-controller="todoCtrl"> <li></li> ...</ul>\[/code\]
\[code\]/* CSS */[ng-controller="todoCtrl"] { list-style: none;}\[/code\]