img {
    width: 100%;
}

a.btn_19 {
	display: block;
	text-align: center;
	vertical-align: middle;
	text-decoration: none;
	width: 765px;
	margin: auto;
	padding: 1rem 4rem;
	font-weight: bold;
	border: 2px solid #f29900;
	background: #f29900;
	color: #fff;
	border-radius: 5px;
	transition: 0.5s;
	animation: move_a 2s infinite;
	font-size: 69px;
	margin-top: 30px;
    margin-bottom: 30px;
}
@keyframes move_a {
    0% {transform: translate(0px, 4px);}
    5% {transform: translate(0px, -4px);}
    10% {transform: translate(0px, 4px);}
    15% {transform: translate(0px, -4px);}
    20% {transform: translate(0px, 4px);}
    25% {transform: translate(0px, -4px);}
    30% {transform: translate(0px, 0px);}
}
a.btn_19:hover {
	color: #27acd9;
	background: #fff;
}