@(name: String, width: Int, height: Int, viewBox: Boolean = true, classNames: List[String] = Nil)(body: Html)
<svg class="icon icon--@name @classNames.map("icon--" + _).mkString(" ")" width="@{width}px" height="@{height}px" 
  @if(viewBox){viewBox="0 0 @width @height"}
  >
  @body
</svg>