How To Add Welcome Message to Your Blog ? try This tutorial
1.Login to your blogger Dashboard--> Design- -> Edit HTML
2.Find code ]]></b:skin> ,Use control F
3.Copy below code and paste it just After ]]></b:skin>
.element { position:fixed; bottom:1%; right:1%; padding:10px; font-family:Arial;
background:#98DBF7; border:1px solid #2FBAF6; }4.Save Template
5.Now go to >> Page element >>'Add a Gadget' on the sidebar.
6.Select 'HTML/Javascript' and add the one of code given below
<div class="element">Your Message Here</div>7. Save Your gadget and Finish !