MagicMight

button {
	transform: skewx(-10deg)
}

let form = <... form selector ...>
f.method = 'post'
f.action = 'parse.php'
form.submit()

<div id="a">
  <div id="b"></div>
</div>

div {
  outline: 2px solid blue;
  width: 200px;
}
#a {
  height: 400px;
  overflow-x:hidden;
  overflow-y:scroll;
  transform: rotate(180deg);
}
#b {
  height:1000px;
}

p {
     margin: 0;
}