改变input placeholder 的颜色

input::input-placeholder{
    color:#b8c4ce!important;
}

input::-webkit-input-placeholder, textarea::-webkit-input-placeholder {
    color: #b8c4ce!important;
}

input:-moz-placeholder, textarea:-moz-placeholder {
    color: #b8c4ce!important;
}

input::-moz-placeholder, textarea::-moz-placeholder {
    color: #b8c4ce!important;
}

input:-ms-input-placeholder, textarea:-ms-input-placeholder {
    color: #b8c4ce!important;
}