1209994-2.html
<!DOCTYPE html>
<style>
div {
height: 240px;
}
#f {
height: 0;
overflow: hidden;
padding: 0;
border: none;
}
</style>
There should be a visible button below:
<div>
<button id="f">This is button</button>
</div>
<script>
h = document.body.clientHeight;
f.style.height = "auto";
</script>
