/*修改placeholder默認顏色*/ :-moz-placeholder { /* Mozilla Firefox 4 to 18 */ color: #999; opacity:1; } ::-moz-placeholder { /* Mozilla Firefox 19+ */ color: #999;opacity:1; } input:-ms-input-placeholder{ color: #999;opacity:1; } input::-webkit-input-placeholder{ color: #999;opacity:1; }