Now i have created custom theme in magento2.Every time i wrote css it doesn't reflect immediately.I have changed mode to "developer".And also disable cache in backend.I have given the following commands to reflect my custom css.
*rm -f var/ -R**
rm -f pub/static -R
php bin/magento setup:static-content:deploy
chmod 0777 var -R
chmod 0777 pub/static -R
It takes too much time to do my design work.So please anyone help on this.