#miaobiao_k{line-height:50px;text-align:center}#splitbutton,#startstopbutton,#resetbutton,#split{font-size:22px;vertical-align:middle;text-align:center;font-weight:bold}#disp{font-size:28px;vertical-align:middle;text-align:center;background-color:#000;color:red;font-weight:900;border:0 none}