.account.page-layout-2columns-left .sidebar-main{width:15%;}
.account.page-layout-2columns-left .column.main{width:85%;}
@media only screen and (max-width: 767px) {
    .account.page-layout-2columns-left .column.main{width:100%;}
}
.account.page-layout-2columns-left .sidebar-additional{width:15%;}