style.css

*{
    color: #fff;
	margin: 0;
	padding: 0;
	font-family: sans-serif;
	font-size: 1rem;
}
.banner{
	width: 100%;
	height: 100vh;
	background-image: linear-gradient(rgba(0,0,0,0.75),rgba(0,0,0,0.75)),url(background.jpg);
	background-size: cover;
	background-position: center;
}

.text {
	padding: 15px 15px;
}

button{
	width: 200px;
	padding: 15px 0;
	text-align: center;
	margin: 20px 10px;
	border-radius: 25px;
	font-weight: bold;
	border: 2px solid red;
	background: transparent;
	color: #fff;
	cursor: pointer;
	position: relative;
	overflow: hidden;
}

span{
	background: #009688;
	height: 100%;
	width: 0;
	border-radius: 25px;
	position: absolute;
	left: 0;
	bottom: 0;
    z-index: -1;
}
button:hover span{
	width: 100%;
}
button:hover{
	border: none;
}

.ptbutton{
	position: absolute;
	top: 0;
	right: 0;
}

@media (max-width: 935px) {
	.content {
		display: flex;
		flex-direction: column;
	}

	.ptbutton {
		top: auto;
		right: auto;
	}
}