change the css for dc

modules/themes/index.scss

@@ -10,6 +10,42 @@
   display: block;
 }
 
+.dc-viewer {
+  font-family: sans-serif;
+  font-size: 16px;
+  overflow: hidden;
+  display: block;
+  position: relative;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+}
+
+.dc-viewer-widget-container {
+  width: 100%;
+  height: 100%;
+}
+
+.dc-widget {
+  font-family: sans-serif;
+  font-size: 16px;
+  overflow: hidden;
+  display: block;
+  position: relative;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+}
+
+.dc-widget,
+.dc-widget canvas {
+  width: 100%;
+  height: 100%;
+  touch-action: none;
+}
+
 .div-icon {
   user-select: none;
   background-color: #fff;