diff --git a/dev/demo/css/kwic.css b/dev/demo/css/kwic.css
new file mode 100644
index 0000000..3942b54
--- /dev/null
+++ b/dev/demo/css/kwic.css
@@ -0,0 +1,53 @@
+ol {
+  overflow-x: hidden;
+  overflow-y: visible;
+  width: auto;
+  border: 1px solid black;
+  text-indent: 0;
+  list-style-type: none;
+  margin: 0;
+  padding: 0;
+}
+
+ol li {
+  display: table-row;
+}
+
+ol li div.left-col {
+  position: relative;
+  display: table-cell;
+  table-layout: fixed;
+  z-index: 5;
+  overflow-y: visible;
+  background-color: green;
+}
+
+div.main-col {
+  position: relative;
+  z-index: 4;
+  display: table-cell;
+}
+
+div.main-col div.snippet div.flag {
+  height: 100%;
+  margin-left: 50%;
+  position: absolute;
+  width: 11px;
+  background-color: red;
+}
+
+ol li div.main-col > div {
+  margin-left: -49999.5%;
+  width: 99999%;
+  overflow-x: hidden;
+  overflow-y: visible;
+  position: relative;
+  box-sizing: border-box;
+}
+
+div.snippet span.first {
+  display: inline-block;
+  width: 50.01%;
+  text-align: right;
+}
+