Hi
if there is something unique about the button, like it class is just for this one button or its tag, you can search your source using RegEx or if its repeated and not unique like :
<button class="like-btn" type="submit">
</button>
<button class="like-btn" type="submit">
^__i class="icon-star">
</button>
and you want the firs, last or a unique one of them you can use
HtmlElement
&
HtmlElementCollection
and use index of your HtmlElementCollection variable to find it.
Check out
HtmlElement Class[
^] for more info.
sorry for my English.