Editing MessageBox/doc (section)

==Design==
Some communities may wish to customize the appearance of the mboxes. The most common styling options are provided illustrated in CSS.

<syntaxhighlight lang="css" class="mw-collapsible mw-collapsed">
.mbox {
    /* the background of the entire box */;
    background-color: ;

    /* the border color of the entire box */
    border-color: ;

    /* the border thickness of the entire box */
    border-width: ;

    /* the default thick left border color; note this can be changed from within the template implementations using the "color" parameter */
    border-left-color: ;

    /* the rounded-ness of the corners */;
    border-radius: ;

    /* the baseline font-size of the mbox */
    font-size: ;
}

.mbox__content {
    /* the padding inside the mbox */
    padding: ;
}

.mbox__content__image {
    /* the minimum width of the mbox's image (if bigger, use the "imagewidth" parameter in the template) */
    width: ;

    /* the spacing to the left of the text (i.e., the right of the image) */
    padding-right: ;
}

.mbox__content__text__comment {
    /* the size of the text in the "comment" parameter */
    font-size: ;
}

.mbox__content__aside {
    /* any particular modifications to the "aside" area can go here */

    /* the maximum width of the aside area */
    width: ;
}

.mbox__close {
    /* the appearance of the close symbol here */
}

.mbox__close:after {
    /* overwrite "content" here if you do not wish for the close symbol to be × */
    content: '';
}

.mw-collapsed + .mbox__close {
   /* modifications to the close symbol when the box is closed */
}

.mw-collapsed + .mbox__close:after {
   /* overwrite "content" here if you do not wish for the close symbol to be + when the box is closed */
   content: '';
}
</syntaxhighlight>

; Technical notes
* Additional inline styles to the root <code>.mbox</code> element can be achieved via the <code>style</code> parameter in the template.