Yeni Responsive WEB sitesi tasarımım

Herkese merhaba bu aralar responsive web sitesi tasarlamakla uğraşıyorum site ve kaynak kodları aşağıda yorumlarınız bekliyorum :

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anasayfa kaynak kodları :

<!DOCTYPE html>
<html>
<head>
    <title>Hello World</title>
    <link rel="stylesheet"  href="style.css">
    <link href="https://fonts.googleapis.com/css?family=Montserrat" rel="stylesheet">
    <link href="https://fonts.googleapis.com/css?family=Indie+Flower" rel="stylesheet">

</head>
<body>
<nav>
    <a href="#">HOME</a>
    <a href="#bant1">ABOUT</a>
    <a href="#gor2">WORKS</a>
    <a href="#bant2">SERVİCES</a>
    <a href="#gor3">PORTFOLIO</a>
    <a href="#bant3">CONTACT</a>
</nav>
<div id="gor1" class="gorsel">
    <div class="anaSayfa anaYazi">
        <h1>HELLO WORLD</h1>
        <p>Welcome to Web Site</p>
        <span>BUY NOW</span>
    </div>
    <div class="anaSayfa anaFiltre"></div>
</div>
<div id="bant1" class="bant"></div>
<div id="gor2" class="gorsel"></div>
<div id="bant2" class="bant"></div>
<div id="gor3" class="gorsel"></div>
<div id="bant3" class="bant"></div>
</body>
</html>

css kodarı :

*{
    margin: 0px;
    padding: 0px;
}
body,html{
    height: 100%;
}
nav{
    position: absolute;
    height: 100px;
    width: 100%;
    text-align: center;
    line-height: 140px;
    z-index: 2;
}
nav a{
    color: #b9b0b0;
    font-family: 'Montserrat', sans-serif;
    text-decoration: none;
    font-size: 20px;
    margin-left: 15px;
    padding: 12px 12px;

}
nav a:hover{
    background-color: #585353;
}
.gorsel{
    height: 100%;
    background-color: lightblue;
    background-size: cover;
    background-attachment: fixed;
}
.bant{
    height: 50%;
    background-color: red;
}
#gor1{
    background-image: url("1.jpg");
}
#gor2{
    background-image: url("2.jpg");
}
#gor3{
    background-image: url("3.jpg");
}
.anaSayfa{
    position: absolute;
    float: left;
}
.anaYazi{
width: 100%;
height: 100%;
z-index: 1;
text-align: center;
margin-top: 250px;
}
.anaYazi h1{
 font-family: 'Indie Flower', cursive;
 color: #d1caca;
 font-size: 90px;
}
.anaYazi p{
    color: #ededed;
    font-size: 25px;
    font-family: 'Indie Flower', cursive;
    margin-bottom: 20px;
}
.anaYazi span{
    font-family: 'Indie Flower', cursive;
    color: black;
    padding: 10px 10px;
    background-color: #d1caca;
    font-size: 15px;
    border: 1px solid #d1caca;
    border-radius: 5px;
}
.anaYazi span:hover{
    background-color: orange;
    color: black;
    cursor: pointer;
}
.anaFiltre{
width: 100%;
height: 200%;
background-color: #000;
z-index: 0;
opacity: 0.44;
}