body {
font-family: arial, sans-serif;
background-image: url(suurikuvaZ.jpg);
background-size: cover;
background-attachment: fixed;
background-position: center;
}
.container {
background-color: white; 
max-width: 800px;
margin-left: auto;
margin-right: auto;
padding: 50px;
}
.oikealla

 {float: right;
margin-left: 20px;
margin-bottom: 20px;
 }

 img {
   max-width: 100%;
   height: auto;
   margin-left: auto;
   margin-right: auto;
}