input placeholder属性改变颜色:

.input{

width:200px;

height:45px;

line-height:45px;

color:#333333;

font-size: 14px;

font-family: "Microsoft Yahei";

out-line:none;

border:1px solid #cccccc;

padding-left:10px;

}

:-moz-placeholder { /* Mozilla Firefox 4 to 18 */

color: red;

}

::-moz-placeholder { /* Mozilla Firefox 19+ */

color: red;

}

input:-ms-input-placeholder,

textarea:-ms-input-placeholder {

color: red;

}

input::-webkit-input-placeholder,

textarea::-webkit-input-placeholder {

color: #f0f;

}