Operation Manual

245
CSS
Last updated 11/30/2015
You can resize any of the panes by dragging the borders between the panes, and can resize columns by dragging
dividers.
The Summary for Selection pane displays a summary of CSS properties and their values for the item currently selected
in the active document. The summary shows the properties for all rules that directly apply to the selection. Only set
properties are shown.
For example, the following rules create a class style and a tag (in this case paragraph) style:
.foo{
color: green;
font-family: ‘Arial’;
}
p{
font-family: ‘serif’;
font-size: 12px;
}
When you select paragraph text with a class style of .foo in the Document window, the Summary for Selection pane
displays the relevant properties for both rules, because both rules apply to the selection. In this case, the Summary for
Selection pane would list the following properties:
font-size: 12px
font-family: ‘Arial’
color: green
The Summary for Selection pane arranges properties in increasing order of specificity. In the above example, the tag
style defines the font size and the class style defines the font family and the color. (The font family defined by the class
style overrides the font family defined by the tag style because class selectors have higher specificity than tag selectors.
For more information on CSS specificity, see
www.w3.org/TR/CSS2/cascade.html.)
The Rules pane displays two different views—About view or Rules view—depending on your selection. In About view
(the default view), the pane displays the name of the rule that defines the selected CSS property, and the name of the
file containing the rule. In Rules view, the pane displays a cascade, or hierarchy, of all rules that apply directly or
indirectly to the current selection. (The tag to which the rule directly applies appears in the right column.) You can
toggle between the two views by clicking the Show Information and Show Cascade buttons in the upper-right corner
of the Rules pane.
When you select a property in the Summary for Selection pane, all of the properties for the defining rule appear in the
Properties pane. (The defining rule is also selected in the Rules pane, if Rules view is selected.) For example, if you have
a rule called .maintext that defines a font family, font size, and color, then selecting any of those properties in the
Summary for Selection pane will display all of the properties defined by the .maintext rule in the Properties pane, as
well as the selected .maintext rule in the Rules pane. (Additionally, selecting any rule in the Rules pane displays that
rule’s properties in the Properties pane.) You can then use the Properties pane to quickly modify your CSS, whether it
is embedded in the current document or linked by means of an attached style sheet. By default, the Properties pane
shows only those properties that have already been set, and arranges them in alphabetical order.
You can choose to display the Properties pane in two other views. Category view displays properties grouped into
categories, such as Font, Background, Block, Border, and so on, with set properties at the top of each category, displayed
in blue text. List view displays an alphabetical list of all available properties, and likewise sorts set properties to the top,
displaying them in blue text. To switch between views, click the Show Category View, Show List View, or Show Only Set
Properties button, located at the lower-left corner of the Properties pane.
In all views, set properties are displayed in blue; properties irrelevant to a selection are displayed with a red strike-
through line. Holding the mouse over a rule that is irrelevant displays a message explaining why the property is
irrelevant. Typically a property is irrelevant because it’s overridden or not an inherited property.