Focus on the most importance: A resume or a resume both requires focusing points. You should go deeply into the most important points about your qualification and knowledge about the job and the company. You may make bold or italic important points (if printing).
Before writing a resume, you should spend time find out carefully about the employer. The more you know about the job and the company, the more suitable your resume and resume may be to the job requirements and as a result, the more your chance will be.