#dcont {
    min-width: 980px;
    max-width: 1200px;
}
.content {
    width: 960px;
    margin: 0 auto;
    padding: 20px;
}
#s3h1 {
    position: absolute;
    right: 0;
    top: 100px;
    width: 580px;
}
#s3h2 {
    position: absolute;
    top:630px;
    width: 100%;
}
#plane {
    max-width: 900px;
    margin: 50px auto;
    visibility: hidden;
}
#s4cont .item { 
    margin: 5px;
}
#s4cont .item img 
{ 
    width: 225px;
}
#s6 .item img {
     width: 300px;
}
#s5stroke {
    right: 110px;
}