Kompx.com or Compmiscellanea.com

CSS. Target Opera only

Windows : Opera 9.5+ [ 1 ] [ 2 ].

Linux : Opera 9.5+ [ 3 ].

CSS targeting Opera web browser only:

This text is red in Opera


<p>This text is red in Opera</p>

CSS. Code:

doesnotexist:-o-prefocus, p {color: #f00;}

The -o-prefocus pseudo-class allows styling elements for Opera browser only. The code is placed in the common CSS file, not in a separate one as it is in case of Internet Explorer conditional comments.

Source: http://www.opera.com/docs/specs/presto2.12/css/o-vendor/

[ 1 ]

Opera 3.5 - 5.0 ignores "doesnotexist:-o-prefocus" and reads code as p {color: #f00;}. Opera 6.0 - 9.4 ignores the whole code starting "doesnotexist".

[ 2 ]

Internet Explorer 5.5+, Firefox 1.0+, Google Chrome, Safari 3.1+, SeaMonkey 1.0+, Netscape 7.2+, Mozilla 1.5+ ignore the whole code starting "doesnotexist".

Older browsers like Internet Explorer before 5.5 or Netscape before 7.2 or Mozilla before 1.5 seem to ignore the uncommon, Opera 9.5+ specific code ("doesnotexist:-o-prefocus") and apply styles to what they understand - here it is the p tag; making the text in it red.

[ 3 ]

The text is red in Dillo 3.0.1 as well.

Aliosque subditos et thema


Non-breaking space ( &nbsp; ) in :before and :after content


Non-breaking space ( &nbsp; ) in :before and :after pseudo-elements. Hex code ( \00a0 ) is used in the content property instead of the named character entity ( &nbsp; ). Example: ABC HTML / XHTML. Code: <div>ABC</div> CSS. Code: div:before {content:"\00a0";} div:after {content:"\00a0";} /* Extra CSS to make non-breaking spaces more obvious here: */ div:before {height: 1em; width: 1em; display: inline-block; background: #f00;} div:after {height: 1em; width: 1em; display: inline-block; background: #00f;} [ 1 ] As well as Netscape 6.01+, Mozilla 0.6+. [ 2 ] As well as Netscape 6.01+, Mozilla 0.6+.

Lynx browser. Creating sitemap.xml


There are more than few online services for sitemap.xml generation. But it is also possible to do it yourself, by means of lynx web browser and several Linux command line utilities. An example bash script employing them, named "sitemap.sh" is described below. Bash script creating a sitemap.xml file: #!/bin/bash cd /home/me/sitemap/www/ lynx -crawl -traversal -accept_all_cookies -connect_timeout=30 http://www.compmiscellanea.com/ > /dev/null cd /home/me/sitemap/www2/ lynx -crawl -traversal -accept_all_cookies -connect_timeout=30 http://compmiscellanea.com/ > /dev/null cat /home/me/sitemap/www2/traverse.dat >> /home/me/sitemap/www/traverse.dat cat /home/me/sitemap/www/traverse.dat | sed -e 's/\<www\>\.//g' | sort | uniq > /home/me/sitemap/sitemap/sitemap.xml sed -i 's/\&/\&amp\;/g' /home/me/sitemap/sitemap/sitemap.xml sed -i "s/'/\&apos\;/g" /home/me/sitemap/sitemap/sitemap.xml sed -i 's/"/\&quot\;/g' /home/me/sitemap/sitemap/sitemap.xml sed -i 's/>/\&gt\;/g' /home/me/sitemap/sitemap/sitemap.xml sed -i 's/</\&lt\;/g' /home/me/sitemap/sitemap/sitemap.xml sed -i 's/http:\/\//http:\/\/www\./g' /home/me/sitemap/sitemap/sitemap.xml sed -i -e 's/^/<url><loc>/' /home/me/sitemap/sitemap/sitemap.xml sed -i -e 's/$/<\/loc><\/url>/' /home/me/sitemap/sitemap/sitemap.xml sed -i -e '1 i <?xml version="1\.0" encoding="UTF-8"?>\r\r<urlset xmlns="http:\/\/www\.sitemaps\.org\/schemas\/sitemap\/0\.9" xmlns:xsi="http:\/\/www\.w3\.org\/2001\/XMLSchema-instance" xsi:schemaLocation="http:\/\/www\.sitemaps\.org\/schemas\/sitemap\/0\.9 http:\/\/www\.sitemaps\.org\/schemas\/sitemap\/0\.9\/sitemap\.xsd">\r\r<!-- created by sitemap.sh from http:\/\/www.compmiscellanea.com\/en\/lynx-browser-creating-sitemap.xml\.htm -->\r\r' /home/me/sitemap/sitemap/sitemap.xml sed -i -e '$ a \\r</urlset>' /home/me/sitemap/sitemap/sitemap.xml sed -i '/static/d' /home/me/sitemap/sitemap/sitemap.xml echo "...Done" After the bash script file is prepared: "chmod +x sitemap.sh" to make it executable. Download sitemap.sh in sitemap.sh.tar.gz archive ( After downloading and unpacking it, put a web site name with "www" instead of http://www.compmiscellanea.com/ and a web site name without "www" instead of http://compmiscellanea.com/ in the file. Replace "static" in the last line of the file by a string unnecessary links should possess to be removed. Then "chmod +x sitemap.sh". Then run sitemap.sh ). Commentary Download sitemap2.sh with line by line commentary in sitemap2.sh.tar.gz archive. Before running the bash script, three folders should be created. Since lynx browser may miss some links if a web site domain name to be crawled is put with or without "www", bash script runs lynx twice, crawling the web site by its name with "www" and crawling the web site by its name without "www". The two result files are put into two of these separate folders, here they are "/home/me/sitemap/www/" and "/home/me/sitemap/www2/". And "/home/me/sitemap/sitemap/" is for sitemap.xml created in the end. 1. Path to bash: #!/bin/bash 2. Going to a folder - lynx browser is going to put there the files obtained from crawling a web site with "www" in its name: cd /home/me/sitemap/www/ 3. Running lynx browser to crawl a web site.