table.treetable span.indenter {
display: inline-block;
margin: 0;
padding: 0;
text-align: right;
/* Disable text selection of nodes (for better D&D UX) */
user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-o-user-select: none;
-webkit-user-select: none;
/* Force content-box box model for indenter (Bootstrap compatibility) */
box-sizing: content-box;
width: 19px;
}
table.treetable span.indenter a {
background-position: left center;
background-repeat: no-repeat;
display: inline-block;
text-decoration: none;
width: 19px;
}
File
core/modules/system/css/jquery.treetable.css