1.禁止表单默认外观:
input,select{ -webkit-appearance:none; appearance:none; }
2.伪元素改变ie10表单元素默认外观
select::-ms-expand {
display: none; }
input[type=radio]::-ms-check,
input[type=checkbox]::-ms-check{ display: none; }
3.禁用PC端表单输入框默认清除按钮
input[type=text]::-ms-clear,
input[type=tel]::-ms-clear,
input[type=number]::-ms-clear{ display: none; }