When typing a long title, the text goes out to the border of the field

Preconditions:
1. The link http://qa.jtalks.org/antarcticle is opened
2. User logged in

Steps to reproduce:
1.create new article
2.input a long valid text ("Say hello wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww") in the "Article title" field
3.push the "preview" button

Expected result:
1. opens a window for creating a new article
2. the entered data is displayed in the "Article title" field
3. а preview window opens where all the entered data are displayed, without going beyond the output field

Actual result:
1. opens a window for creating a new article
2. the entered data is displayed in the "Article title" field
3. а preview window opens where all the entered data are displayed, and title leave for border fields output