[Removed link]
There should be 5 columns. Each post has a 20% width, it looks ok in Chrome but in IE and Firefox the last column gets pushed below so there are only 4. Does anybody know why?
.post {
width: 20%;
float: left;
overflow: hidden;
}
<article class="col post">
stuff inside
</article>
<article class="col post">
stuff inside
</article>
<article class="col post">
stuff inside
</article>
....
Found my answer here: https://github.com/desandro/masonry/issues/166 I changed 20% to 19,8%