JavaScript Understanding DOM

#gostudy_button_66dce7432b161 { color: rgba(255,255,255,1); }#gostudy_button_66dce7432b161:hover { color: rgba(30,40,69,1); }#gostudy_button_66dce7432b161 { border-color: rgba(30,40,69,1); background-color: rgba(30,40,69,1); }#gostudy_button_66dce7432b161:hover { border-color: rgba(30,40,69,1); background-color: rgba(255,255,255,1); }