arka plan için bu kodu kullanabilirsin

<style>
@import url(https://fonts.googleapis.com/css?fami...eway:400,700);
body {
background: #ffffff url(arkaplan.jpg) no-repeat center top;
-webkit-background-size: cover;
-moz-background-size: cover;
background-size: cover;
}
.container > header h1,
.container > header h2 {
color: #fff;
text-shadow: 0 1px 1px rgba(0,0,0,0.7);
}
</style>