How to place elements close to each other?

Example, i have several elements which need to place inside container. Width of every element is constant. But height can be dfiferent (100/200/300/400px). How to place it close to each other. Now i have one element with height = 200px, 1 - 100px and 1-400px. inside the container everything looks like this:
****************
200 | 400
____ |_____
100
The element goes after the maximum height (400px). But i want the container looks like this:
********
200 | 400
100 |_____
How i can get it? It is possible?