How to remove left side bar from services page in Astrid

Here is the link to my webpage, i want to remove left sidebar, that starts with searchbox, please help me in getting rid of it.
http://www.toshimapackaging.com/service-1/

Hi,

You can hide them using this CSS code below:

aside#secondary {
    display: none;
}

Add the code to Customize > additional CSS.

Best.