https://purengom.com/2017/11/21/%ec%95%84%ec%9d%b4%ed%8f%b0iphone-8-10%ec%97%90%ec%84%9c-%ea%b0%95%ec%a0%9c-%ec%9e%ac%eb%b6%80%ed%8c%85-%ed%95%98%eb%8a%94-%eb%b0%a9%eb%b2%95/