Извиняюсь, поправил.
<!DOCTYPE html><html lang="ru"><head><meta charset="UTF-8"><style>
* {
padding: 0;
margin: 0;
box-sizing: border-box;
}
html, body{
min-height: 100%;
}
body{
overflow: hidden;
}
.wrap {
overflow-y: scroll;
width: calc(100% + 9px);
position: absolute;
top: 0;
bottom: 0;
right: 0;
left: 0;
}
.page {
height: 100vh;
width: 100%;
}
.active {
position: fixed;
top: 0;
height: 100px;
}
.page:nth-of-type(1) {background-color:#cccccc;}
.page:nth-of-type(2) {background-color:#afafaf;}
.page:nth-of-type(3) {background-color:#737373;}
.page:nth-of-type(4) {background-color:#404040;}
</style></head><body>
<section class="wrap">
<section class="page active"></section>
<section class="page"></section>
<section class="page"></section>
<section class="page"></section>
</section>
</body></html>