+details > summary::after {
+ content: '[+]';
+}
+details summary {
+ list-style: none;
+}
+details[open] > summary::after {
+ content: '[-]';
+}
+table.main > tbody > tr > td, table.main > tbody > tr > th {
+ border-bottom: 0.1em solid #bbbbbb;
+ padding-top: 0.5em;
+ padding-bottom: 0.5em;
+}