.whatsapp-button{

border: 1px solid #5cbe4a; 
display: inline-block !important; 
position: relative; 
cursor: pointer; 
text-transform: none; 
color: #fff; 
border-radius: 5px; 
background-color: #5cbe4a; 
background-repeat: no-repeat; 
background-position: 5px; 
line-height: 1.2; 
text-decoration: none; 
text-align: left;
padding: 6px 6px 6px 42px;
letter-spacing: .6px;
font-size:16px;
background-image: url("whatsapp-share-icon.png");
}