*{
	margin:0;
	padding: 0;
	box-sizing: border-box;
	font-family: 'Josefin Sans', sans-serif;
}
 header{
 	width: 100%;
 	height: 100vh;
 	background-image:linear-gradient(rgba(0,0,0,0.3),rgba(0,0,0,0.1)),url('img.jpg');
 	background-repeat: no-repeat;
 	background-size: cover;
 }

  nav{
  	 width: 100%;
  	 height: 15vh;
  	 background: rgba(0,0,0,0.2);
  	 color: white;
  	 display:flex;
  	 justify-content: space-between;
  	 align-items: center;
  	 text-transform: uppercase;
  }
nav .logo{
	 width: 25%;
	 text-align: center;
}
nav .menu{
	width: 40%;
	display: flex;
	justify-content: space-around;

}
nav .menu a{
	width: 25%;
	text-decoration: none;
	color: white;

}
nav .menu a:first-child{
	color:#00b894;
}

main{
	width:100%;
	height: 85vh;
	display: flex;
	justify-content: center;
	align-items: center;
	text-align: center;
	color: white;

}
/**section {

}**/
section h3{
       font-size: 35px;
       font-weight:200 ;
       letter-spacing: 3px;
       text-shadow: 1px 1px 2px black;
}
section h1{
	 margin:30px 0 20px 0;
	 font-size: 55px;
	 font-weight: 700;
	 text-shadow: 2px 1px 5px black;
	 text-transform: uppercase;
}

section P{
	font-size: 25px;
	word-spacing: 2px;
	margin-bottom: 25px;
	text-shadow: 1px 1px 1px black;
}

section a{
	 padding:12px 30px;
	 border-radius: 4px;
	 outline: none;
	 text-transform: uppercase;
	 font-size: 13px;
	 font-weight: 500;
	 text-decoration: none;
	 letter-spacing: 1px;
	 transition: all .5s ease;
}
section .btnone{
	background: #fff;
	color: #000;

}
.btnone:hover{
	background: #00b894;
	color: white;
}
section .btntwo{
	background: #00b894;
	color: white;
}
.btntwo{
	background: #fff;
	color: #000;
	}	
.change_content:after{
	content: ''; 
	animation: changetext 10s infinite linear;
	color: #00b894;
}
@keyframes changetext{
	0%{content: "BitCoin";}
	10%{content: "Ethereum";}
	20%{content: "Tether";}
	30%{content: "XRP";}
	40%{content:"Palkadot";}
	50%{content:"Cardano";}
	60%{content:"ChainLink";}
	70%{content:"BitCoin Cash";}
	80%{content:"LiteCoin";}
	90%{content:"USD Coin";}
    100%{content:"Aave";}
}