利用translate作按鈕點擊下沉

.【初始化】 login_submit_btn{ width:308px; height:42px; background:#58beed; color:#fff; font-size:16px; font-weight:bold; cursor:pointer; border:none;}

【放上去】 .login_submit_btn:hover{ color:#fff; background:#40e30e;
transition: all 0.2s 0s ease; -moz-transition: all 0.2s 0s ease; /* Firefox 4 / -webkit-transition: all 0.2s 0s ease; / Safari and Chrome / -o-transition: all 0.2s 0s ease; / Opera */
} 【點擊下去狀態】 .login_submit_btn:active{ -moz-transform: translate(2px,2px); -webkit-transform: translate(2px,2px); -o-transform: translate(2px,2px); }