input清除自带样式

input, textarea,label, button,select,img,form,table,a{-webkit-tap-highlight-color: rgba(255,255,255,0);-webkit-tap-highlight-color: transparent;margin: 0;padding: 0;border: none;
}
/*去除iPhone中默认的input样式*/
input, button, select, textarea{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;outline: none;resize:none;
}
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {-webkit-appearance: none;
}

input默认样式

input::-webkit-input-placeholder{color:#C0C4CC}
input:-moz-input-placeholder{color:#C0C4CC}
input::-ms-input-placeholder{color:#C0C4CC}
input::placeholder{color:#C0C4CC}

或

 input::placeholder,  input::-ms-input-placeholder, input::-webkit-input-placeholder,input::-moz-placeholder{color: #e6e6e6;
}

input为某种类型设置样式

input[type="number"]{-moz-appearance: textfield;
}

input禁止（disable）设置样式

input:disabled,input[disabled]{color: #333333;-webkit-text-fill-color: #333333 !important;-webkit-opacity: 1;
}

textarea设置默认样式修改

textarea::placeholder, textarea::-webkit-input-placeholder, textarea::-ms-input-placeholder , textarea::-moz-placeholder {color: #999;
}

 input:-webkit-autofill, textarea:-webkit-autofill, select:-webkit-autofill {-webkit-box-shadow: 0 0 0 15.625rem #fff inset;
}