*{
	margin: 0;
	padding: 0;
}
/*title*/
.header{
	min-height: 100vh;
	width: 100%;
	background-image: linear-gradient(rgba(4,9,30,0.7), rgba(4,9,30,0.7)),url(images/cover.jpeg);
	background-position: center;
	background-size: cover;
	position: relative;
}
.hero-btns{
	flex: 1;
	text-align: center;
}
.hero-btns ul li{
	list-style: none;
	display: inline-block;
	padding: 8px 12px;
	position: relative;
}
.hero-btns ul li a{
	display: inline-block;
	text-decoration: none;
	font-size: 20px; 
	color: #fff;
	border: 1px solid #fff;
	padding: 12px 34px;
	font-size: 13px;
	background: transparent;
	position: relative;
	cursor: pointer;
}
.hero-btns ul li a:hover{
	border: 1px solid #f44336;
	background: #f44336;
	transition: 1s;
}
.text-box{
	width: 90%;
	color: #fff;
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	text-align: center;
}
.text-box h1{
	font-size: 62px;
}

.text-box h3{
	font-size: 30px;
}

.text-box p{
	margin: 10px 0 40px;
	font-size: 20px;
	color: #fff;
	text-align: left;
}
@media(max-width: 700px){
	.text-box h1{
		font-size: 30px;
	}
	.text-box h3{
		font-size: 20px;
	}
	.text-box p{
		font-size: 14px;
	}
}

/*code instruction*/
.code-instruction{
	width: 90%;
	margin: auto;
	text-align: center;
	padding-top: 50px;
	padding-bottom: 50px;
	border-bottom: 1px solid black;
	
}
.code-instruction div{
	padding-top: 10px;
	padding-bottom: 10px;
}
.code-instruction h3{
	font-size: 30px;
	color: #000;
	text-align: center;
	padding-top: 10px;
	padding-bottom: 10px;
}
.code-instruction h4{
	font-size: 20px;
	color: #000;
	text-align: left;
	padding-top: 10px;
	padding-bottom: 10px;
}
.code{
	color: #000;
	text-align: left;
	padding-top: 10px;
	padding-bottom: 10px;
	padding-left: 20px;
	font-family: Arial, Helvetica, sans-serif;
	background-color: #F0F8FF;
}
.code-instruction li{
	font-size: 16px;
	color: #000;
	text-align: left;
}
.code-instruction p{
	font-size: 16px;
	color: #000;
	text-align: left;
}

/*worflow introduction*/
.row{
	margin-top: 5%;
	display: flex;
	justify-content: space-between;
}
.intro{
	width: 90%;
	margin: auto;
	text-align: center;
	padding-top: 50px;
}
.intro h3{
	margin: 10px 0 40px;
	font-size: 30px;
	color: #000;
	text-align: center;
}
.intro-workflow{
	flex-basis: 90%;
	border-radius: 10px;
	margin-bottom: 30px;
	position: relative;
	overflow: hidden;
}
.intro-workflow img{
    height: auto; 
    width: auto; 
    max-width: 90%; 
    max-height: 90%;
}
.intro-workflow h3{
    margin: 10px 0 40px;
	font-size: 30px;
	color: #000;
	text-align: center;
}
.intro-workflow h4{
	font-size: 18px;
	color: #000;
	text-align: left;
}
.intro-workflow p{
    margin: 10px 0 40px;
	font-size: 16px;
	color: #000;
	text-align: left;
}