Membuat Spoiler

Pada dasbor klik tata letak=> klik elemen halaman=> tambah gadget=> HTML/JavaScript,
lalu copy kode berikut
<div><div style="margin: 20px; margin-top:5px"><div style="margin-bottom: 2px;" class="smallfont"><input style="margin: 0px; padding: 5px; width: auto; " value="Show" 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 = 'Hidden'; }else { this.parentNode.parentNode.getElementsByTagName('div')[1].getElementsByTagName('div')[0].style.display = 'none'; this.innerText = ''; this.value = 'Show'; }"type="button"/></div><div class="alt2"><div style="display: none;"><div style="border: none; color:none; background-color:none; text-align: justify; padding:10px;">
DISINI LETAK KONTENT ANDA</div></div></div></div></div>

Atau versi lain dari spoiler

<div><div style="margin: 5px;">
<div class="smallfont" style="margin-bottom: 2px;"><span style="font-weight: bold;"> Judul Spoiler</span><input value="Open!!!" style=" margin:5px;padding: 0px; width: 80px; font-size: 10px;" onclick="if (this.parentNode.parentNode.getElementsByTagName(&#39;div&#39;)[1].getElementsByTagName(&#39;div&#39;)[0].style.display != &#39;&#39;) { this.parentNode.parentNode.getElementsByTagName(&#39;div&#39;)[1].getElementsByTagName(&#39;div&#39;)[0].style.display = &#39;&#39;; this.innerText = &#39;&#39;; this.value = &#39; Close..&#39;; } else { this.parentNode.parentNode.getElementsByTagName(&#39;div&#39;)[1].getElementsByTagName(&#39;div&#39;)[0].style.display = &#39;none&#39;; this.innerText = &#39;&#39;; this.value = &#39; Clik Here&#39;; }" type="button" />
</div>
<div class="alt2" style="border: 1px inset ; margin: 0px; padding: 6px;">
<div style="display: none;">
ISI SPOILER
</div></div></div>

Segitu Dulu dech.....
salam bloger