Website Performance Optimization portfolio project

How to run this project

1. Clone or download this repository
2. Click index.html

####The changes I made ######index.html

1. Inline CSS.
2. Adding asyncto <script>.
3. Adding mediaattribute.

######main.js 1.Moving the variable definition out of the for loop. 2.Using getElementById to substitute getElementsByClassName.

######other Compress the size of pictures.