/* BASIC css start */
.fix_btn{position:fixed;right:15px;bottom:15px;z-index:99;}
.fix_btn a{display:block;width:50px;height:50px;border-radius:100%;overflow:hidden;margin-top:5px;box-shadow:2px 2px 2px rgba(0,0,0,0.2);}
.fix_btn a img{height:50px;}
/* BASIC css end */