Altering the page layour widths

@media screen and (min-width: 800px) {

.sidebar.sidebar-main.col-sm-3.col-sm-pull-6.sidebar-3lr {
    width: 20% !important;
}
.template-page.col-sm-6.col-sm-push-3.tpl-3lr {
    width: 45% !important;
}
.sidebar.sidebar-extra.col-sm-3.sidebar-3lr {
    width: 35%;
}
.template-page.col-sm-push-3 {
    left: -moz-calc(20% - 1px);
    left: -webkit-calc(20% - 1px);
    left: -o-calc(20% - 1px);
    left: calc(20% - 1px);
}
.col-sm-pull-6 {
    right: 45%;
}

}