plugins/struts2-dojo-plugin/src/main/resources/org/apache/struts2/static/dojo/src/widget/templates/Editor2/showtableborder_gecko.css

/* For tables with the "border" attribute set to "0" */
table[border="0"], 
table[border="0"] > tr > td, table[border="0"] > tr > th, 
table[border="0"] > tbody > tr > td, table[border="0"] > tbody > tr > th, 
table[border="0"] > thead > tr > td, table[border="0"] > thead > tr > th, 
table[border="0"] > tfoot > tr > td, table[border="0"] > tfoot > tr > th
{
	border: #d3d3d3 1px dotted ;
}

/* For tables with no "border" attribute set */
table:not([border]), 
table:not([border]) > tr > td, table:not([border]) > tr > th,
table:not([border]) > tbody > tr > td, table:not([border]) > tbody > tr > th,
table:not([border]) > thead > tr > td, table:not([border]) > thead > tr > th,
table:not([border]) > tfoot > tr > td, table:not([border]) > tfoot > tr > th
{
	border: #d3d3d3 1px dotted ;
}