Kompx.com or Compmiscellanea.com

CSS for a range of elements

Windows : Internet Explorer 9.0+, Firefox 1.5+, Google Chrome, Opera 9.5+, Safari 3.1+, SeaMonkey 1.0+.

Linux : Firefox 1.5+, Google Chrome / Chromium, Opera 9.5+, SeaMonkey 1.0+.

Styling a range of elements. Here from the 1st to the 3rd one - changing background color. Example:







CSS. Code:

div:nth-of-type(-n+3) {background: #f66;}

/* Extra CSS, just styling the look: */

div {width: 100%; margin-top: 5px; background: #066;}

Note: nth-child may also be used instead.

Aliosque subditos et thema


HTTP to HTTPS redirect in .htaccess


Redirecting from all domain names of a web site to its web address with HTTPS and the domain with www. The names to be redirected from are: Both with and without www - URL with HTTP Without www - URL with HTTPS Server configuration: Apache + nginx. SSL is enabled. SSL-certificate is purchased, approved and installed. That is, everything is up and running. So it is just the HTTP to HTTPS redirection that is left to get ready and start up. Directives for .htaccess file: RewriteEngine On RewriteCond %{HTTP:HTTPS} !on [NV] RewriteRule ^(.*)$ https://www.domain.tld/$1 [R=301,L] RewriteCond %{HTTP_HOST} !^www\. RewriteRule ^(.*)$ https://www.domain.tld/$1 [R=301,L] HTTP to HTTPS redirect in detail -- Enable runtime rewriting engine: RewriteEngine On -- If HTTPS is not present: RewriteCond %{HTTP:HTTPS} !on [NV] -- Then replace HTTP + domain (with or without www) with HTTPS + domain with www: RewriteRule ^(.*)$ https://www.domain.tld/$1 [R=301,L] -- If HTTPS is present, but domain name has no www (the case when https://domain.tld is entered in address bar): RewriteCond %{HTTP_HOST} !^www\. -- Then replace it with HTTPS + domain with www: RewriteRule ^(.*)$ https://www.domain.tld/$1 [R=301,L] Notes RewriteCond %{HTTP:HTTPS} !on [NV] is not the only way to detect if HTTPS is not present. Moreover, for some server configurations other directives may be more suitable, like RewriteCond %{SERVER_PORT} !443 for example. The point is to find out somehow if HTTPS is not on. So it should probably be checked by practice what is going to work in a particular case. Apache Module mod_rewrite docs: http://httpd.apache.org/docs/current/mod/mod_rewrite.html

Arachne web browser. Installing and setting up for internet connection via Ethernet


A : Installing Arachne web browser on a disk created in RAM - Arachne runs the fastest this way. RAM size should allow for a RAM disk of 6 MB or more. In order to install and set up Arachne web browser for internet connection via Ethernet, there have to be several programs at hand: 1. Arachne web browser [ Download ] 2. If Arachne web browser is to be used for surfing web pages with character encoding other than Latin for West European languages, visit www.glennmcc.org/apm/ to find available character set packages and download the necessary one. 3. Mouse driver, mouse.com for instance [ Download ] 4. Packet driver for Ethernet network card: http://www.crynwr.com/drivers/ http://www.georgpotthast.de/sioux/packet.htm 5. Microsoft Network Client 3.0 [ Download ] 6. NDIS 2.0 driver for Ethernet network card. For example: Realtek RTL8029AS [ Download ]. Drivers for other network cards may be found, for instance, on web sites of Ethernet cards manufacturers. 7. Archivers. For example, PKZIP [ Download ] and PKUNZIP [ Download ] 8. If it is not MS-DOS 6.0+ to be used, QEMM97 [ Download ] 9. If it is not MS-DOS 6.0+ to be used, TDSK [ Download ] Installing and setting up Arachne web browser, step by step: 1. Create a RAM disk. Which drive letter will be assigned to it comes from the assumption that A: and B: go to floppy drives (even if there is only one, both letters will be reserved anyway), C: goes to the first active primary MS-DOS partition on the first physical hard disk. If there are more disks, then there will be as many letters used consecutively as to name them all. Unless there are no devices installed using DRIVER.SYS or similar drivers, the next drive letter will be assigned to the RAM disk. In order to be sure, after having the relevant string for making RAM disk added to CONFIG.SYS (See below), computer could be restarted and what letter is assigned to the RAM disk checked by experiment. In this case, it is E: Depending on RAM size it needs to be decided how many megabytes can be reserved for RAM disk. Basically, the more the better. Since, for instance, web browser cache is going to swell during prolonged and intensive use within a session. In this example the RAM disk is 12 000 KB. The maximum size for RAMDRIVE.SYS MS-DOS driver is 32 767 KB, the one of TDSK - 64 MB. In order to create such a disk, the string has to be added somewhere in the middle of CONFIG.SYS as follows: DEVICE=C:\DOS\RAMDRIVE.SYS 12000 512 512 /E 2. Create a folder, for example C:\DRIVERS\. Put there: a mouse driver, for instance mouse.com, a packet driver for Ethernet network card and a NDIS 2.0 driver for Ethernet network card. 3. Add a string starting mouse driver to AUTOEXEC.BAT. Specify there the full path to the driver, may be any: LH C:\DRIVERS\MOUSE.COM 4. Prepare installation floppies of Microsoft Network Client 3.0: DSK3-1.EXE -d A: DSK3-2.EXE -d A: 5. Start setup.exe from the first floppy and begin Microsoft Network Client 3.0 installation. Installation is starting. Press Enter to continue Select folder for Microsoft Network Client 3.0 to be installed to. It may be any or the suggestion of the installer may be left as it is - in the case discussed it is left as it is.