
Berbeda dengan plugin
Berikut contoh pop-up yang saya ambil dari situs http://www.kangrian.com ( pada halaman artikel ) :

Untuk demonstrasi-nya langsung, sobat bisa lihat langsung Disini
Cara Pemasangan:
1. Login Blogger
2. Klik menu "Template" → "Edit HTML"
3. Pastikan sobat sudah menyimpan kode external jQuery library di bawah ini, tepat sebelum tag
<script src='http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js' type='text/javascript'></script>
Kode jQuery library hanya bisa di pasang 1x saja, jika sobat sudah memasang kode jQuery library lewati langkah ini, karena akan mengakibatkan konflik / semua kode jQuery tidak akan berfungsi.
4. Simpan semua kode di bawah ini tepat di atas kode
:<b:if cond='data:blog.pageType == "item"'>
<style type='text/css'>
.overlay {
position:fixed;
z-index:+100000;
top:0;left:0;
width:100%;
height:100%;
background:white;
opacity:.8;
}
.google-share {
border:1px solid #aaa;
background:white;
padding:33px;
width:570px;
max-width:95%;
position:fixed;
z-index:+100001;
top:100px;
left:50%;
margin-left:-285px;
box-shadow:0px 5px 10px rgba(0,0,0,0.18);
}
.google-share h3 {
clear:both;
margin:0px!important;
margin-bottom:20px!important;
font-size:20px!important;
font-weight:normal;
color:#333;
}
.google-share h3 span.close {
float:right;
cursor:pointer;
font-size:25px;
}
.google-share img { margin:5px;margin-right:0px; display:inline-block; border-radius:2px; transition:all .3s ease; }
.google-share img:hover { opacity:.7; }
.google-share span.small {
font-size:14px!important;
font-family:arial,sans-serif!important;
color:#484848;
}
.google-share input {
border:1px solid #ccc;
width:80%;
}
.bagikan img {
position:fixed;
z-index:+1000;
top:200px;
left:0;
background:#fff;
padding:10px;
border-radius:0 3px 3px 0;
border:1px solid #ddd;
}
.bagikan img:hover {
opacity:.7;
cursor:pointer;
box-shadow:0px 3px 0px rgba(0,0,0,0.14);
top:197px;
}
.bagikan img:active {
box-shadow:none;
top:200px;
}
@media screen and (max-width : 640px) {
.google-share, .overlay, .bagikan { display:none!important;}
}
</style>
<div class='bagikan'><img alt='bagikan' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjA1oW1UjFZpG9Dl-sycGZZrTYC3U_byhr5B515Z22oL78Dv8kXgoi2QODjMaQ4LFIKNWWxCzkR-K4RU_3iKhgSkIS1qTtSht0owtjdWvxZJi5gmELCJSBBKOtDVIcbsone-5TViU-GHEs/s1600/share.png' title='Bagikan!'/></div>
<div class='overlay' style='display:none;'/>
<div class='google-share' id='google-share' style='display:none;'>
<h3><data:post.title/> <span class='close'>×</span></h3>
<span class='small'>Klik untuk berbagi di:</span><br/>
<a expr:href='"https://plus.google.com/share?url=" + data:blog.canonicalUrl' target='_blank' title='Bagikan di Google+'>
<img alt='Google Plus Icon' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgByUGf1hyyQywQJ_Alj9n_4RgTpq60wjJMx_CC-wuyef5ioqXtcSopsIkGIwlcoRyJhov4MNnS_JkqJtq-Mpk5f0NJvQHWSc0rsV5Kqo1pUC3uSi6PlYM-MVQ1LAB-9pCTiZmb2wdQcjM/h33/gplus.png'/></a>
<a expr:href='"https://www.facebook.com/sharer/sharer.php?u=" + data:blog.canonicalUrl' target='_blank' title='Bagikan di Facebook'>
<img alt='Facebook Icon' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgOOXnbOAmO2BVzvL2OYDyXO52lLCWAufjCoczKD9z_WQCiThtlGloBrvlpq-kjcJ8Tp74-Ppi9CUPMmKrkB4KZt-giYzE_lVBEziGZ1IQ_SoitlOOFkYq_si8y-Qzj6S-H7oQ39NBWPE/h33/fb.png'/></a>
<a expr:href='"https://twitter.com/intent/tweet?text=" + data:post.title + "&url=" + data:post.url' target='_blank' title='Bagikan di Twitter'>
<img alt='Twitter Icon' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhjQcNhtd3Rytijb1_uTcIjOkDju-trUh8b_hyB4C2voAAWnxqWkxiDcQt8SFbXaaMME9_X0UggMPTIwVwI-VhHx9fKUWDW5ZlmG0w1Y41gk471K92XGw9Z3pCFtes00K6AYm997yzR1Y/h33/t.png'/></a>
<a expr:href='"mailto:?subject=" + data:post.title + "&body=" + data:blog.canonicalUrl' target='_blank' title='Bagikan via Email'>
<img alt='Email Icon' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTY0zJthzXbOcLAgF66XuLyq5fTpqKsDRU4qf-9b_RXtxI8NQ8_Fr8Frg5DYdnlQG90LWqd8VFnifohT4UClO9O0V7jRazI2MoAGKBhTab82mnjeoOE_VJDE-NvfFDXXaEvbEwjVcDCfI/h33/m.png'/></a>
<br/>
<span class='small'>Atau salin tautan:</span><br/>
<input expr:value='data:blog.canonicalUrl' readonly='readonly' type='text'/>
</div>
<script type='text/javascript'>
//<![CDATA[
$(window).bind("load", function() {
$('#google-share, .overlay').fadeIn(1000);
$('#google-share input').select();
});
$('#google-share input').click(function() {
$('#google-share input').select();
});
$('.bagikan').click(function() {
$('#google-share, .overlay').fadeIn(500);
$('#google-share input').select();
});
$(document).ready(function() {
$('.close, .overlay, #google-share img').click(function() {
$('#google-share').hide();
$('.overlay').hide();
});
});
//]]>
</script>
</b:if>
5. Terakhir "Simpan Template"
Selesai, selamat mencoba dan semoga berhasil! :)