It seems you only redirect /lab, but the static files are not in /lab, they are in /static.

So you should also redirect /static so that these files can be accessed.

Another way would be to just place the static files into the appropriate Apache directory.

Edit

The error message about file not found says

C:/apache24/htdocs/static/css/main.00e8fde0.css

Assuming The DocumentRoot is C:/apache24/htdocs that means the URL to access the file is /static/css/main.00e8fde0.css.

It looks like there was an alias in your ./conf.d/javascript-common.conf: file that was causing Apache to look in the wrong place. As you noted, deleting those entries fixed the problem and Apache was happy.

I got your point

1) Login admin panel

2) go to Sytem->Configuration->General->Web-> Unsecure

3) change Base Skin URL to {{unsecure_base_url}}skin/

4) Sytem->Configuration->General->Web-> Secure

5) for this also Base Skin URL to {{secure_base_url}}skin/

6) go to system->Cache Management and Refresh the cache.

Change your link reference to (with leading slash):

<link href="/htmlcss.css" rel="stylesheet" type="text/css">

You were using a reference to the page being viewed. So in the other page, it was trying to load /documents/htmlcss.css.

Per the above, you should be using a reference relative to the root of your domain.

as per the yahoo instructions on website front end engeneering

*No 404s

HTTP requests are expensive so making an HTTP request and getting a useless response (i.e. 404 Not Found) is totally unnecessary and will slow down the user experience without any benefit. Some sites have helpful 404s "Did you mean X?", which is great for the user experience but also wastes server resources (like database, etc). Particularly bad is when the link to an external JavaScript is wrong and the result is a 404. First, this download will block parallel downloads. Next the browser may try to parse the 404 response body as if it were JavaScript code, trying to find something usable in it.*

Coming back to your question : error 404 can in worst cases cause your machine to stop.

As if you are running this on the server. Port 80, it will be Localhost/{yourhtml}.

Now you need to understand the path, that how on the server it needs to be declared. When running on the system, your path start from the root directory which is by default is your home directory. Now when you are on server it's root directory at localhost which is pointing the path

/var/www/html/

And whatever you put inside that folder it will address from this path.

So as you are using

<img src="/var/www/html/page1.jpeg"style="width:100%;height:auto;">

Now browser will understand it as

/var/www/html/var/www/html/page1.jpeg

Where no such directory exist

simply use

<img src="page1.jpeg"style="width:100%;height:auto;">`

Again it will point the path if your image file is inside the HTML

/var/www/html/page1.jpeg

else If you are having any folder suppose Image and your image file inside that image folder. you just now need to address the folder also

<img src="Image/page1.jpeg"style="width:100%;height:auto;">`

/var/www/html/Image/page1.jpg

Since the 404 page will be displayed from any URL, you will need to use absolute paths for any external page assets like CSS files, images, JavaScript files, etc.

So any relative paths...

<link type="text/css" rel="stylesheet" media="screen" href="site.css" />

will need to be changed to absolute paths...

<link type="text/css" rel="stylesheet" media="screen" href="/site.css" />

You have a relative path to the <img> src. The actual image is at /errors/rajni.jpg. Thus the image will only load if the path is in /errors. To fix this, simply change the src:

<img src="/errors/rajni.jpg">

How apache serves it is different than how the browser requests it. The browser must make a separate HTTP request for every resource it downloads including the image. It makes one request to /not/a/page. Apache sees /not/a/page and returnsHTTP: 404; html=(basically). The browser parses HTML, displays, and seessrc=rajni.jpg. Then it makes another request:GET HTTP 1.1 /not/a/page/rajni.jpg`. Apache is happy to respond with another 404

First thing to check is your .htaccess file.

Remove everything in it and use the code sample provided by EllisLab in the docs for removing index.php: https://ellislab.com/expressionengine/user-guide/urls/remove_index.php.html

<IfModule mod_rewrite.c>
        RewriteEngine On
        RewriteBase /

        # Removes index.php from ExpressionEngine URLs
        RewriteCond %{THE_REQUEST} ^GET.*index\.php [NC]
        RewriteCond %{REQUEST_URI} !/system/.* [NC]
        RewriteRule (.*?)index\.php/*(.*) /$1$2 [R=301,NE,L]

        # Directs all EE web requests through the site index file
        RewriteCond %{REQUEST_FILENAME} !-f
        RewriteCond %{REQUEST_FILENAME} !-d
        RewriteRule ^(.*)$ /index.php/$1 [L]
</IfModule>