@charset "UTF-8";

#main_cont { width: -webkit-calc(100% - 380px); width: calc(100% - 380px); float: left; margin: 0; }
.sidebar { float: left; width: 300px; }
.sidebar ul { list-style: none; }
#sidebar_left { margin-right: 30px; }
#sidebar_right { margin-left: 30px; }

@media only screen and (max-width: 960px) {
    #main_cont { float: none; width: 90%; margin: 0 2.5% 50px; padding: 30px 2.5%; }
    .sidebar,#sidebar_left,#sidebar_right { float: none; width: 95%; margin: 0 2.5% 50px; }
}