Rollup merge of #44671 - GuillaumeGomez:run-button, r=steveklabnik
Rollup merge of #44671 - GuillaumeGomez:run-button, r=steveklabnik

Fix run button

r? @QuietMisdreavus

Before:

![before](https://user-images.githubusercontent.com/3050060/30538927-612c6a44-9c70-11e7-9ca2-f3860d880b95.png)

After:

![after](https://user-images.githubusercontent.com/3050060/30538929-6416ea0e-9c70-11e7-990a-7e4fbf5d7319.png)

Quite urgent.

graydon/rust,graydon/rust,graydon/rust,GBGamer/rust,GBGamer/rust,graydon/rust,GBGamer/rust,graydon/rust,graydon/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,aidancully/rust,aidancully/rust,aidancully/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,aidancully/rust