<style type="text/css">
#gb{
position:fixed;
bottom:5px;
z-index:+1000;
}
* html #gb{position:relative;}
.gbtab{
height:100px;
width:74px;
float:left;
cursor:pointer;
background:url('https://Icon-anhien.JPG') no-repeat;
}
.gbcontent{
float:left;
background:none;
padding:3px;
}
</style>
<script type="text/javascript">
function showHideGB(){
var gb = document.getElementById("gb");
var w = gb.offsetWidth;
gb.opened ? moveGB(0, 75-w) : moveGB(71-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.right = x.toString() + "px";
if(x0!=xf){setTimeout("moveGB("+x+", "+xf+")", 10);}
}
</script>
<div id="gb">
<div class="gbtab" onclick="showHideGB()">đóng
</div>
<div class="gbcontent">
Đặt code tùy ý của bạn vào đây
</div>
<script type="text/javascript">
var gb = document.getElementById("gb");
gb.style.right = (75-gb.offsetWidth).toString() + "px";
</script>