1. Login Ke Blogger.com dengan Akun anda masing-masing Pastinya
2. Masuk ke Tab Tata Letak
3. Pilih Elemen Halaman
4. Tambah Gadget Pilih HTML / JAVASCRIPT
5. Dan copy kode di bawah ini kedalamnya yah

<a onblur="try {parent.

deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhVrdWWz3apsOAEBkqv9o1wOlLZSpH2rAIiVlsgNoeqZRzMKOjhbmC9ADE7RnMqXhrNkQ7lkDiDOdmFmD68WRRKslHWs_OE6Lbp7xGKeBuBJDJlnxo_SvjkJ9Bqo4d1XUgtmMK2dvmzliA/s1600-h/Widget.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 400px; height: 300px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhVrdWWz3apsOAEBkqv9o1wOlLZSpH2rAIiVlsgNoeqZRzMKOjhbmC9ADE7RnMqXhrNkQ7lkDiDOdmFmD68WRRKslHWs_OE6Lbp7xGKeBuBJDJlnxo_SvjkJ9Bqo4d1XUgtmMK2dvmzliA/s400/Widget.JPG" alt="" id="BLOGGER_PHOTO_ID_5433478876639914642" border="0" /></a>

<style type="text/css">

#gb{

position:fixed;

top:10px;

z-index:+1000;

}

* html #gb{position:relative;}

.gbcontent{

float:right;

border:2px solid #A5BD51;

background:#ffffff;

padding:10px;

}

</style>

<script type="text/javascript">

function showHideGB(){

var gb = document.getElementById("gb");

var w = gb.offsetWidth;

gb.opened ? moveGB(0, 30-w) : moveGB(20-w, 0);

gb.opened = !gb.opened;

}

function moveGB(x0, xf){

var gb = document.getElementById("gb");

var dx = Math.abs(x0-xf) > 10 ? 5 : 1;

var dir = xf>x0 ? 1 : -1;

var x = x0 + dx * dir;

gb.style.top = x.toString() + "px";

if(x0!=xf){setTimeout("moveGB("+x+", "+xf+")", 10);}

}

</script>

<div id="gb">

<div class="gbtab" onclick="showHideGB()"> </div>

<div class="gbcontent">

<div style="text-align:right">

<a href="javascript:showHideGB()">

.:[Close][Klik 2x]:.

</a>

</div>

<center>

Masukan Kode iklan atau Gambar yang anda inginkan di sini

</center>

<script type="text/javascript">

var gb = document.getElementById("gb");

gb.style.center = (30-gb.offsetWidth).toString() + "px";

</script></center></div></div>