If you are facing problem of css and js page load design after installation in magento2 please follow the following step-:

open the terminal and navigate to magento web root

 <pre> $ cd /var/www/html/magento2 </pre>
Step 1.

<pre> $ php bin/magento setup:static-content:deploy </pre>
Step 2.

 <pre> $ php bin/magento indexer:reindex</pre>
Step 3.

make sure apache “rewrite_module” is enable and then restart the server

Step 4.

 <pre> $ chown -R www-data:www-data /var/www/html/magento2 </pre>
Step 5.

 <pre> $ chmod -R 777 /var/www/html/magento2 </pre>
Step 6.

delete cache folder under var/cache

The above step working. I hope this will work for you also.