buat spoiler keren

<div><div style="margin: 5px;"><div class="smallfont" style="margin-bottom: 2px;"><i><span style="font-weight: bold;">judul sopel anda. </span></i><input value="Show" style="margin: 0px; padding: 0px; width: 60px; font-size: 10px;" onclick="if (this.parentNode.parentNode.getElementsByTagName('div')[1].getElementsByTagName('div')[0].style.display != '') { this.parentNode.parentNode.getElementsByTagName('div')[1].getElementsByTagName('div')[0].style.display = ''; this.innerText = ''; this.value = 'Hide'; } else { this.parentNode.parentNode.getElementsByTagName('div')[1].getElementsByTagName('div')[0].style.display = 'none'; this.innerText = ''; this.value = 'Show'; }" type="button"/></div><div class="alt2" style="border: 1px inset ; margin: 0px; padding: 6px;"><div style="display: none;">isi spoiler...</div></div></div></div>sebagi contoh di bawah ini spoelnya

Tentang bla..bla.bla..

isi spoel saudara mbak mas om tante,miss,mr