Fix UI bug

When article's title is very long, the end of the title may be hidden under the 22em width

![1](https://cloud.githubusercontent.com/assets/4951333/5561379/6fd9b2b8-8e0e-11e4-8a02-e2cc64c0ee6b.png)

![2](https://cloud.githubusercontent.com/assets/4951333/5561380/7ce84dd4-8e0e-11e4-9338-7525c5613c4b.png)