add hover style react code example

Example 1: react css hover animation

npm install style-it 
*********
import React from "react";
import Style from "style-it";

class UrClass extends React.Component {
  render() {
    return Style.it(
      `
      .myDiv:hover {
        color:red;
        transform: scale(1.001);
        background: #f0c14b;
      }
    `,
      <div className="myDiv">sample text</div>
    );
  }
}

export default UrClass;

Example 2: jsx .style on hover react

import styles from './Button.css'

const MyButton = ({children, onClick, type='primary', ...rest }) =>
(
    <button
        onClick   = {onClick}
        className = {styles.primary}
        {...rest}
    >
        {children}
    </button>
);