flexible tile .info width (bug 1091207)

Mobile and Desktop should be unchanged by this. Below are some "tablet" sizes:

![](http://f.cl.ly/items/2R0u2729033D0z2g3j3E/Image%202014-10-30%20at%204.08.45%20PM.png)

![](http://f.cl.ly/items/3j3x2Z2x0X093r0T1a3O/Image%202014-10-30%20at%204.10.54%20PM.png)

![](http://f.cl.ly/items/0n442l0t2n1p1L3Z0n27/Image%202014-10-30%20at%204.12.35%20PM.png)
how come `100%` isn't the default?