zephyr/doc/static/zephyr-custom.css

/* -- Extra CSS styles for Zephyr content ----------------------------------- */

/*  make .. hlist:: tables fill the page */
table.hlist {
    width: 95% !important;
}

/*  override rtd theme white-space no-wrap in table heading and content  */
th,td {
    white-space: normal !important;
}