+
+html|*.help-button {
+ width: 16px;
+ height: 16px;
+ border: 0;
+ padding: 0;
+ display: inline-block;
+ background-image: url("chrome://global/skin/in-content/help-glyph.svg#help");
+ background-repeat: no-repeat;
+ background-position: center center;
+ background-size: contain;
+}
+
+html|*.help-button:hover {
+ background-image: url("chrome://global/skin/in-content/help-glyph.svg#help-hover");
+}
+
+html|*.help-button:hover:active {
+ background-image: url("chrome://global/skin/in-content/help-glyph.svg#help-pressed");
+}