The border

Here's the border code you can just add it in your BORDER before of it on Edit HTML.

-moz-border-radius-bottomright: 50px;border-bottom-right-radius: 50px;

First border 

-moz-border-radius-bottomright: 50px 25px;border-bottom-right-radius: 50px 25px;

Second border 

-moz-border-radius-bottomright: 25px 50px;border-bottom-right-radius: 25px 50px;

Third border 

-moz-border-radius: 1em 4em 1em 4em;border-radius: 1em 4em 1em 4em;

Fourth border 

-moz-border-radius: 25px 10px / 10px 25px;border-radius: 25px 10px / 10px 25px;

Fifth border 

-moz-border-radius: 25px 10px / 10px 25px;border-radius: 25px 10px / 10px 25px;

Last border 

Yea,I had no preview picture but you can try it!Preview and see yourS!