.btn-wsp{
    position:fixed;
    width:60px;
    height:60px;
    line-height: 63px;
    bottom:25px;
    right:25px;
    /*background:#FC5E28;*/
    background:#25d366;
    color:#FFFFFF;
    border-radius:50px;
    text-align:center;
    font-size:35px;
    box-shadow: 0px 1px 10px rgba(0,0,0,0.3);
    z-index:100;
    transition: all 300ms ease;
}
.btn-wsp:hover{
    background: #FFFFFF;
    /*color: #FC5E28;*/
    color:#25d366;

}
.btn-wsp:
@media only screen and (min-width:320px) and (max-width:768px){
    .btn-wsp{
        width:63px;
        height:63px;
        line-height: 66px;
	}
}

.btn-wsp:not(:hover) { 
    background:#25d366;
    color:#FFFFFF;
}