add that missing css file

public/stylesheets/interim-bootstrap.css

+.twipsy {
+  display: block;
+  position: absolute;
+  visibility: visible;
+  padding: 5px;
+  font-size: 11px;
+  z-index: 1000;
+  filter: alpha(opacity=80);
+  -khtml-opacity: 0.8;
+  -moz-opacity: 0.8;
+  opacity: 0.8;
+}
+.twipsy.fade.in {
+  filter: alpha(opacity=80);
+  -khtml-opacity: 0.8;
+  -moz-opacity: 0.8;
+  opacity: 0.8;
+}
+.twipsy.above .twipsy-arrow {
+  bottom: 0;
+  left: 50%;
+  margin-left: -5px;
+  border-left: 5px solid transparent;
+  border-right: 5px solid transparent;
+  border-top: 5px solid #000000;
+}
+.twipsy.left .twipsy-arrow {
+  top: 50%;
+  right: 0;
+  margin-top: -5px;
+  border-top: 5px solid transparent;
+  border-bottom: 5px solid transparent;
+  border-left: 5px solid #000000;
+}
+.twipsy.below .twipsy-arrow {
+  top: 0;
+  left: 50%;
+  margin-left: -5px;
+  border-left: 5px solid transparent;
+  border-right: 5px solid transparent;
+  border-bottom: 5px solid #000000;
+}
+.twipsy.right .twipsy-arrow {
+  top: 50%;
+  left: 0;
+  margin-top: -5px;
+  border-top: 5px solid transparent;
+  border-bottom: 5px solid transparent;
+  border-right: 5px solid #000000;
+}
+.twipsy-inner {
+  padding: 3px 8px;
+  background-color: #000000;
+  color: white;
+  text-align: center;
+  max-width: 200px;
+  text-decoration: none;
+  -webkit-border-radius: 4px;
+  -moz-border-radius: 4px;
+  border-radius: 4px;
+}
+.twipsy-arrow {
+  position: absolute;
+  width: 0;
+  height: 0;
+}
+.popover {
+  position: absolute;
+  top: 0;
+  left: 0;
+  z-index: 1000;
+  padding: 5px;
+  display: none;
+}
+.popover.above .arrow {
+  bottom: 0;
+  left: 50%;
+  margin-left: -5px;
+  border-left: 5px solid transparent;
+  border-right: 5px solid transparent;
+  border-top: 5px solid #000000;
+}
+.popover.right .arrow {
+  top: 50%;
+  left: 0;
+  margin-top: -5px;
+  border-top: 5px solid transparent;
+  border-bottom: 5px solid transparent;
+  border-right: 5px solid #000000;
+}
+.popover.below .arrow {
+  top: 0;
+  left: 50%;
+  margin-left: -5px;
+  border-left: 5px solid transparent;
+  border-right: 5px solid transparent;
+  border-bottom: 5px solid #000000;
+}
+.popover.left .arrow {
+  top: 50%;
+  right: 0;
+  margin-top: -5px;
+  border-top: 5px solid transparent;
+  border-bottom: 5px solid transparent;
+  border-left: 5px solid #000000;
+}
+.popover .arrow {
+  position: absolute;
+  width: 0;
+  height: 0;
+}
+.popover .inner {
+  background-color: #000000;
+  background-color: rgba(0, 0, 0, 0.8);
+  padding: 3px;
+  overflow: hidden;
+  width: 280px;
+  -webkit-border-radius: 6px;
+  -moz-border-radius: 6px;
+  border-radius: 6px;
+  -webkit-box-shadow: 0 3px 7px rgba(0, 0, 0, 0.3);
+  -moz-box-shadow: 0 3px 7px rgba(0, 0, 0, 0.3);
+  box-shadow: 0 3px 7px rgba(0, 0, 0, 0.3);
+}
+.popover .title {
+  background-color: #f5f5f5;
+  padding: 9px 15px;
+  line-height: 1;
+  -webkit-border-radius: 3px 3px 0 0;
+  -moz-border-radius: 3px 3px 0 0;
+  border-radius: 3px 3px 0 0;
+  border-bottom: 1px solid #eee;
+}
+.popover .content {
+  background-color: #ffffff;
+  padding: 14px;
+  -webkit-border-radius: 0 0 3px 3px;
+  -moz-border-radius: 0 0 3px 3px;
+  border-radius: 0 0 3px 3px;
+  -webkit-background-clip: padding-box;
+  -moz-background-clip: padding-box;
+  background-clip: padding-box;
+}
+.popover .content p, .popover .content ul, .popover .content ol {
+  margin-bottom: 0;
+}
+.fade {
+  -webkit-transition: opacity 0.15s linear;
+  -moz-transition: opacity 0.15s linear;
+  -ms-transition: opacity 0.15s linear;
+  -o-transition: opacity 0.15s linear;
+  transition: opacity 0.15s linear;
+  opacity: 0;
+}
+.fade.in {
+  opacity: 1;
+}
+
+/* hacks */
+.popover h3 {
+  margin-bottom: 0;
+  font-weight: bold;
+}