Removing a portion of the URL in Yii 2.0 - .htaccess

Question

If I enter the URL:
http://localhost/third/web/calculator
it just works fine. I now want to remove the web portion from the URL. I currently do not have .htaccess. And if I enter http://localhost/third/calculator it shows object not found.
I added this .htaccess in the root folder of the project:
Options +FollowSymlinks
RewriteEngine On
RewriteCond %{REQUEST_URI} ^/third/(assets|css)
RewriteRule ^assets/(.*)$ web/assets/$1 [L]
RewriteRule ^css/(.*)$ web/css/$1 [L]
RewriteCond %{REQUEST_URI} !^/third/web/(assets|css)/
RewriteCond %{REQUEST_URI} !index.php
RewriteCond %{REQUEST_FILENAME} !-f [OR]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^.*$ web/index.php
Now if I enter http://localhost/third/calculator it shows the congratulations page of yii2, instead of the calculator page. If click in any other tabs like login with link <span class="glyphicon glyphicon-log-in"></span> Login the url shows the web still.

Answer 1

First you change config->web.php
'components' => [
'urlManager' => [
'class' => 'yii\web\UrlManager',
'enablePrettyUrl' => true,
'showScriptName' => false,
],
]
Add .htaccess file in your project root directory
# prevent directory listings
Options -Indexes
IndexIgnore */*
# follow symbolic links
Options FollowSymlinks
RewriteEngine on
RewriteRule ^(/.+)?$ web/$1 [L,PT]
RewriteRule ^(.+)?$ web/$1
Also you have to add .htaccess file in your_project->web directory
RewriteEngine on
# If a directory or a file exists, use the request directly
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
# Otherwise forward the request to index.php
RewriteRule . index.php