# Appendix C: TWiki CSS _Listing of CSS class names emitted from TWiki core code and standard plugins, for the Dakar release._
## Who should read this document? Most html elements generated by TWiki core code now have Cascading Style Sheet (CSS) tags. **_Skin builders_** and others who want to change the appearance of the default TWiki installation or any of the skins can use this document to see what styles can be created for these html elements. ## Naming conventions 1. All TWiki class names have the prefix `twiki`. So: twikiAlert, twikiToc, etcetera. Remember that CSS class names are case sensitive - TWiki CSS uses lowercase `tw`. 2. If you define your own CSS classes, it is preferable that you do not use the `twiki` prefix to prevent undesired overriding effects. A wide range of standard styles are used in the TWiki core code and topics, and more are used in plugins. The following is an exhaustive list of all styles defined by the Pattern skin. For the most part, the names are the only documentation of the purpose of the style. For more information on how these styles are used, read the code (sorry!) ### TWiki styles in core code
.twikiAlert Client.pm, Form.pm, Statistics.pm
.twikiFirstCol Render.pm
.twikiForm Render.pm
.twikiNew Changes.pm, Search.pm
.twikiHelp Changes.pm
.twikiTopRow Manage.pm
.twikiSummary Manage.pm
.twikiGrayText Manage.pm
.twikiCheckBox Manage.pm
.twikiLink Render.pm
.twikiNewLink Render.pm
.twikiAnchorLink Render.pm
.twikiCurrentWebHomeLink Render.pm
.twikiCurrentTopicLink Render.pm
.twikiEmulatedLink Preview.pm
.twikiWebIndent TWiki.pm
.twikiEditFormDateField Form.pm
.twikiEditFormTextField Form.pm
.twikiEditFormLabelField Form.pm
.twikiEditFormTextAreaField Form.pm
.twikiEditFormCheckboxButton Form.pm
.twikiEditFormCheckboxField Form.pm
.twikiRadioButton Form.pm
.twikiEditFormRadioField Form.pm
.twikiEditFormError Form.pm
.twikiDiffTable RDiff.pm
.twikiDiffDeletedHeader RDiff.pm
.twikiDiffDeletedMarker RDiff.pm
.twikiDiffDeletedText RDiff.pm
.twikiDiffAddedHeader RDiff.pm
.twikiDiffAddedMarker RDiff.pm
.twikiDiffAddedText RDiff.pm
.twikiDiffChangedHeader RDiff.pm
.twikiDiffChangedText RDiff.pm
.twikiDiffUnchangedText RDiff.pm
.twikiDiffUnchangedTextContents RDiff.pm
.twikiDiffLineNumberHeader RDiff.pm
.twikiDiffDebug RDiff.pm
.twikiDiffDebugRight RDiff.pm
.twikiDiffDebugLeft RDiff.pm
.twikiToc TWiki.pm
.twikiTocTitle TWiki.pm
### TWiki Styles in Plugins #### [[TablePlugin]]
.twikiTable The table
.twikiSortedCol A sorted column
.twikiSortedAscendingCol Sorted column, ascending
.twikiSortedDescendingCol Sorted column, descending
.tableSortIcon The sort icon holder (span)
.twikiFirstCol The first column
.twikiTableEven Even numbered rows
.twikiTableOdd Odd numbered rows
.twikiTableCol + column number Unique column identifier, for instance: twikiTableCol0
.twikiTableRow + type + row number Unique row identifier, for instance: twikiTableRowdataBg0
### TWiki Styles in Templates
.twikiPage twiki.tmpl
.twikiMiddleContainer twiki.tmpl
.twikiMain twiki.tmpl
.twikiFormTable formtables.tmpl, form.tmpl
.twikiFormTableHRow formtables.tmpl, form.tmpl
.twikiFormTableRow formtables.tmpl
.twikiFormTableFooter formtables.tmpl
.twikiAttachments attachtables.tmpl
.twikiEditForm form.tmpl
.twikiSubmit Submit button
.twikiSubmitDisabled Disabled submit button
.twikiInputField  
.twikiInputFieldDisabled  
.twikiInputFieldReadOnly  
.twikiInputFieldFocus For Internet Explorer that does not recognize the :focus pseudo class selector
.twikiInputFieldBeforeFocus for use with Javascript: the color of the input text when not clicked in the field
.twikiSelect Select dropdown menu
.twikiTextarea  
.twikiTextareaRawView  
.twikiButton  
.twikiFocus Behaviour marker so a field can be given input focus
.twikiLeft  
.twikiRight  
.twikiClear  
.twikiHidden  
.twikiSmall  
.twikiBottomRow  
.twikiSRAuthor  
.twikiSRRev  
.twikiPageForm  
.twikiSeparator  
.twikiAccessKey  
.twikiLinkLabel  
.twikiFormSteps container around a form, such as the attach form: attach.tmpl
.twikiFormStep form row
.twikiNoBreak no break on whitespace
.twikiMakeVisible For elements that should only be visible with javascript on: default set to hidden, is made visible by javascript. Defaults to inline.
.twikiMakeVisibleInline For span elements that should only be visible with javascript on: default set to hidden, is made visible by javascript.
.twikiMakeVisibleBlock For div elements that should only be visible with javascript on: default set to hidden, is made visible by javascript.
.twikiMakeHidden For elements that should be hidden with javascript on: no default style, is made hidden by javascript.
.twikiFooterNote  
.twikiPopUp Behaviour marker so a popup-window can be invoked
.twikiContentHeader container around optional html placed before topic text
.twikiContentFooter container around optional html placed after topic text
### TWiki Styles used in =configure
#twikiLogin CSS.pm
.twikiFormSteps CSS.pm
.twikiFormStep CSS.pm
### TWiki Styles in topics
.twikiBroadcastMessage %SYSTEMWEB%.TWikiPreferences
#twikiSearchTable %SYSTEMWEB%.WebSearch, %SYSTEMWEB%.WebSearchAdvanced
### TWiki Styles in Skins
#twikiLogin login.pattern.tmpl  
### Reserved Styles
.twikiImage defined in [[Main/PatternSkin]] div creates border around enclosed image
.twikiNotification defined in [[Main/PatternSkin]] temporary alert, lighter than broadcast message
.twikiUnvisited defined in [[Main/PatternSkin]] link style that ignores the visited link state; useful for form links
## Tips PatternSkin makes extensive use of CSS in its templates. Read the [[PatternSkin]] topic and [[PatternSkinCss]] to learn more about creating your own CSS-based skin. Practical introduction to CSS: **_Related Topics:_** [[TWikiSkins]], [[PatternSkin]], [[DeveloperDocumentationCategory]], [[AdminDocumentationCategory]]