1. توجه الى القالب ثم تحرير html
2. ابحث عن الوسم </body> وضع الكود التالي  فوقه مباشرة

<style>
.fb-like {
  position: fixed;
  bottom: 16px;
  left: 16px;
  z-index: 99999;
  background: #3a5795;
  border-radius: 100%;
  box-shadow: 1px 2px 16px rgba(0,0,0,0.6);
  height: 64px;
  width: 64px;
}
.fb-like img {
  padding: 16px;
  visibility: visible;
  opacity: 1;
}
.fb-like-button {
  bottom: 45px;
  position: fixed;
  height: 40px;
  visibility: hidden;
  opacity: 0;
  left:24px;
  border-radius: 100%;
  width: 60px;
}
.fb-like:hover .fb-like-button {
visibility: visible;
opacity:1;
left:24px;
height:65px;
border-radius: 0px;
}
.fb-like:hover img{
visibility: hidden;
opacity:0;
width:50px;
}
.fb-like:hover {
  background: #fff;
  border-radius: 3px;
  height: 102px;
  width: 76px;
  box-shadow: 1px 3px 20px rgba(0,0,0,0.7);
}
</style>
<div class='fb-like'><img src='http://c.top4top.net/p_36fuv53.png'/>
<iframe allowTransparency='true' class='fb-like-button' frameborder='0' scrolling='no' src='https://www.facebook.com/v2.5/plugins/like.php?app_id=113869198637480&channel=https%3A%2F%2Fstaticxx.facebook.com%2Fconnect%2Fxd_arbiter.php%3Fversion%3D42%23cb%3Df2938f6778%26domain%3Ddevelopers.facebook.com%26origin%3Dhttps%253A%252F%252Fdevelopers.facebook.com%252Ff12322327c%26relation%3Dparent.parent&container_width=613&href=http%3A%2F%2Ffacebook.com%2Fdabourphone%2F&layout=box_count&locale=ar_AR&sdk=joey&share=false&show_faces=false'></iframe> </div>