div#lkn-whatsapp-button{z-index:9999;background-color:#00e676;position:fixed;left:15px;bottom:20px;font-size:20px;width:60px;height:60px;-webkit-mask-image:url('/img/icone/svg/wa-bg.svg');mask-image:url('/img/icone/svg/wa-bg.svg')}