.magnet_button{color:#f5f7fc;cursor:pointer;background-color:#139948;border:none;border-radius:50%;width:150px;height:150px;margin:1em 0;font-size:18px;position:relative}.magnet_button span{content:"";z-index:-1;background-color:#139948;border:2px solid #139948;border-radius:100%;width:150px;height:150px;transition:all .3s;position:absolute;top:0;left:0;-webkit-transform:scale(0)}.magnet_button:hover span{z-index:-1;background-color:#000;border-radius:50%;width:150px;height:150px;transition:all .3s;position:absolute;top:0;left:0;-webkit-transform:scale(1)}