#myBtn
	{
    display: none;
    position: fixed;
    bottom: 18px;
    right: 28px;
    z-index: 99;
    outline: none; 
	border: none;
	background-color: #464646;
    color: #808080;
    cursor: pointer;
    padding: 12px;
    font-size: 18px;
	}
	
	@media screen and (max-width: 960px)
		{ #myBtn { padding: 10px; } }

#myBtn:hover
	{
    background-color: #009900;
	color: #ededed;
	}
	
#myBtn img
	{
    width: 32px;
	height: 32px;
	}
	
	@media screen and (max-width: 960px)
		{ #myBtn img { width: 24px; height: 24px; } }