.btn,.btn:focus{background-color:#16a085;border:none;border-radius:4px;box-shadow:0 5px 15px #193047;color:#fff;font-size:1rem;font-weight:700;min-width:200px;overflow:hidden;padding:10px 20px;position:relative;text-align:center;text-decoration:none;text-transform:uppercase;transition-duration:.4s}.btn:hover{background:#fff;box-shadow:0 2px 10px 5px #1abc9c;color:#000}.btn:after{background:#1abc9c;content:"";display:block;margin-left:-20px!important;margin-top:-120%;opacity:0;padding-left:350%;padding-top:300%;position:absolute;transition:all .8s}.btn:active:after{margin:0;opacity:1;padding:0;transition:0s}