There are at least two ways to achieve centred content. Until today I had been using the first of them, but as my Nokia E71 displays only the second way correctly, now changed in to that.
Absolutely positioned way:
#way1 {
position: absolute;
left: 50%;
width: 700px;
margin-left: -350px;
}Automatic margins way:
#way2 {
width: 700px;
margin-left: auto;
margin-right: auto;
}