The CSS styling includes rules for different classes and elements like .b_header, .b_results, .b_algo, .b_caption, .b_ans, .b_top, .b_dropdown, .b_searchbox, .b_dark, .ccmc, .ctxt, .ccal, .b_posText, .b_negText, .trgr_icon, .b_posText, .b_negText, .b_context, .b_entityTitle, .b_entitySubTitle, .b_promoteText, .b_expando, .b_defaultText, .b_active, .b_alert, .sb_alert, .b_pAlt, .b_demoteText, .b_secondaryText, .b_attribution, .b_factrow, .b_focusLabel, .b_footnote, .b_ad, .b_adlabel, .b_vList, .b_algo, .b_top, .b_promoteText, .b_alert, .sb_alert, .b_pAlt