body {
    margin: 0;
    padding: 0;
    border-sizing: border-box;
    /*#bcfd49*/
    background-color: #000 ;
    overflow: hidden;
}

@media screen and (min-width: 1024px){
    p {
	color: white;
	font-family: Arial, Helvetica, sans-serif;
    }
    .container{
	display: flex;
	align-items: center;
	justify-content: center;
	width: 100vw;
	height: 100vh;
    }
    .container div {
	/* margin-top: 100px;*/
	width: 300px;
	height: 70px;
	border-style: solid;
	background-color: #000;
	border-radius: 50px;
	border-color: #000;
	border-width: 5px;
    }

    h3 {
	margin:20px;
	color: #bcfd49;
	font-family: Arial;
	font-size:20px;
	text-align: center;
	
    }

    #txt {
	margin: 25px;
	color: #511555;
	font-family: Arial;
	text-align: center;
    }

    footer p {
	color: #fff;
	position: fixed;
	bottom: 0;
	left: 50%;
    }

}

@media screen and (min-width: 768px) and (max-width: 1023px){
    p {
	/*color: white;*/
	font-family: Arial, Helvetica, sans-serif;
    }
    .container{
	display: flex;
	align-items: center;
	justify-content: center;
	width: 100vw;
	height: 100vh;
    }
    .container div {
	/* margin-top: 100px;*/
	width: 300px;
	height: 70px;
	border-style: solid;
	background-color: #000;
	border-radius: 50px;
	border-color: #000;
	border-width: 5px;
    }

    h3 {
	margin: 20px;
	color: #bcfd49;
	font-family: Arial;
	font-size:20px;
	text-align: center;
	
    }

    footer p {
	color: #fff;
	position: fixed;
	bottom: 0;
	left: 50%;
    }
}

@media screen and (max-width: 767px){
    p {
	color: white;
	font-family: Arial, Helvetica, sans-serif;
    }
    .container{
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	width: 100vw;
	height: 100vh;
    }
    .container div {
	/* margin-top: 100px;*/
	width: 300px;
	height: 70px;
	border-style: solid;
	background-color: #000;
	border-radius: 50px;
	border-color: #000;
	border-width: 5px;
    }

    h3 {
	margin: 20px;
	color: #bcfd49;
	font-size:20px;
	font-family: Arial;
	text-align: center;
	
    }

    footer p {
	color: #fff;
	position: fixed;
	bottom: 0;
	left: 50%;
    }