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CSS centering

1 ) CSS horizontal and vertical centering - 1

Centering a container with the whole content of a web page inside in the viewable area of a web browser by means of CSS. A box to contain the whole content of the page is CSS centered horizontally and vertically. More for modern web browsers : [ More ] : [ Open demo page ]

2 ) CSS horizontal and vertical centering - 2

Centering a container with the whole content of a web page inside in the viewable area of a web browser by means of CSS. A box to contain the whole content of the page is CSS centered horizontally and vertically. More conservative, than the previous method. Suitable not only for modern web browsers, but for older ones as well - like Internet Explorer 6 or earlier Maxthon. A shortcoming - it takes more efforts to maintain the CSS code compared to [ CSS horizontal and vertical centering - 1 ] method : [ More ] : [ Open demo page ]

3 ) CSS centering floated elements

Floated elements of unknown width are CSS centered horizontally : [ More ] : [ Open demo page ]

4 ) CSS centering absolutely positioned elements

CSS horizontal centering of an absolutely positioned element : [ More ]

5 ) CSS centering image

CSS horizontal centering of an image : [ More ]

6 ) CSS vertical alignment

CSS vertical alignment of a block element containing text and images. The method works for various combinations of inline and block elements : [ More ]

7 ) JavaScript + CSS centering

Centering content of a web page by means of JavaScript and CSS. A block containing the content of a page is JavaScript + CSS centered horizontally and vertically : [ More ] : Two cases :

1. A block is centered, if screen resolution is equal to or greater than 1024x768 : [ Open demo page ]

2. A block is centered, if screen resolution is equal to or greater than 1024x768 + mouse cursor is moved over a link in an element of the page content : [ Open demo page ]


Aliosque subditos et thema

 

VBScript rollover. Image swap

 

VBScript rollover, using image swap. Two examples: several ways of applying VBScript in a web page. VBScript rollover Example 1 HTML / XHTML. Code: <a href="#" onmouseover="onMouse_over()" onmouseout="onMouse_out()"><img src="out.gif" id="rollover" alt="" /></a> VBScript. Code (<script> tag including): <script type="text/vbscript"> Sub onMouse_over() rollover.src='over.gif' End Sub Sub onMouse_out() rollover.src='out.gif' End Sub </script> Note: an external VBScript script file may also be used. The code itself is the same (without <script> tag pair, surely). The file is linked to page very much like a JavaScript file would be: <script type="text/vbscript" src="vbscript.vbs"></script> VBScript rollover Example 2 HTML / XHTML. Code: <a href="#"><img src="out.gif" id="rollover2" alt="" /></a> VBScript. Code (<script> tag including): <script type="text/vbscript" event="OnMouseOver" for="rollover2"> rollover.src='over.gif' </script> <script type="text/vbscript" event="OnMouseOut" for="rollover2"> rollover.src='out.gif' </script>

Renaming files in DOS

 

Renaming files in DOS by REN command REN FILE1.TXT FILE2.TXT - Renames FILE1.TXT into FILE2.TXT REN FILE1.TXT FILE2.HTM - Renames FILE1.TXT into FILE2.HTM REN *.TXT *.HTM - Renames all files with .txt extension into files with .htm extension. Only extensions are changed, the file names proper are left as they were. Since REN is the shorter form of RENAME command, RENAME may be used instead - as more self-explaining may be. Renaming files in DOS by MOVE command MOVE FILE1.TXT FILE2.TXT - Renames FILE1.TXT into FILE2.TXT MOVE FILE1.TXT FILE2.HTM - Renames FILE1.TXT into FILE2.HTM Both methods of file renaming work in Windows command prompt as well. But there is a certain distinction: MS-DOS, other typical / older DOS'es, command prompt of Windows prior to Windows 95 and Windows NT 3.51 use a short filename / 8.3 filename convention. So, for example, REN FILE1.HTM FILE1.HTML is not going to work, there will be "Duplicate file name or file name not found" message. And that is not the case with newer DOS'es or command prompt of newer Windows. It can be not the case in older DOS'es also - if relevant drivers are installed. [ 1 ] MS-DOS 6.0+ tested - but it also may happen to work well under other versions of MS-DOS or other DOS'es.