How to Style JSF Components with Colon-Containing IDs in CSS?

How to Target JSF-Generated Identifiers with Colons in CSS Selectors

In JSF applications, components may be rendered with client IDs containing colons, like "phoneForm:phoneTable." These colons can conflict with the syntax of CSS selectors, which use colons to indicate pseudo-classes.

1. Escape the Colon:

Escape the colon using a backslash (). This works in most browsers.

#phoneForm\:phoneTable {
    background: pink;
}

2. Use a space-escaped Backslash:

In IE6/7, the escaped colon requires a trailing space.

#phoneFormA phoneTable {
    background: pink;
}

3. Wrap in a Native Element:

Wrap the JSF component in a regular HTML element and apply styles to the wrapper.

<h:form>

#phoneField table {
    background: pink;
}

4. Use a Class Instead:

Assign the component a CSS class instead of an ID. This eliminates the colon issue.

<h:dataTable>

.pink {
    background: pink;
}

5. Change JSF Separator (JSF 2.x ):

Modify the JSF UINamingContainer separator in web.xml to a hyphen (-) instead of a colon.

<context-param>
    <param-name>javax.faces.SEPARATOR_CHAR</param-name>
    <param-value>-</param-value>
</context-param>

#phoneForm-phoneTable {
    background: pink;
}

6. Disable Form ID Prepending (JSF 1.2 ):

Disable prepending of the form ID to component IDs. However, this can cause issues with AJAX processing and is not recommended.

    <h:dataTable>

#phoneTable {
    background: pink;
}

Recommendation:

For your specific case, using a CSS class like "phoneTable" is the most suitable solution, as it allows flexibility and avoids potential conflicts with JSF naming containers.

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