.bd-main .bd-content .bd-article-container {
  max-width: 100%;  /* default is 60em */
}
.bd-page-width {
    max-width: 100%; /* maximizes overall horizontal space */
}
.bd-sidebar-primary {
    max-width: var(--pst-sidebar-secondary); /* same maximal width for the left side bar as for the right one */
}