diff --git a/packages/examples/default.css b/packages/examples/default.css
deleted file mode 100644
index 71bcc499..00000000
--- a/packages/examples/default.css
+++ /dev/null
@@ -1,136 +0,0 @@
-body {
-  margin: 0;
-  background: #f0f0f0;
-  font-family: "Microsoft YaHei", serif;
-}
-
-body .hide {
-  display: none;
-}
-
-.main {
-  margin: 20px auto;
-  background: #fff;
-  width: fit-content;
-  border: 1px solid #bbb;
-}
-
-ul,
-li {
-  margin: 0;
-  padding: 0;
-  list-style-type: none;
-}
-
-.clearfix {
-  zoom: 1;
-}
-
-.clearfix:after {
-  height: 0;
-  clear: both;
-  content: " ";
-  font-size: 0;
-  display: block;
-  visibility: hidden;
-}
-
-.indent {
-  margin-left: 16px;
-}
-
-.tabs {
-  margin: -1px;
-  height: 40px;
-}
-
-.tabs li {
-  float: left;
-  height: 38px;
-  line-height: 38px;
-  text-align: center;
-  width: calc(50% - 1px);
-  border: 1px solid #bbb;
-}
-
-.tabs li.selected {
-  height: 39px;
-  border-width: 1px 0 0 0;
-}
-
-.content {
-  margin: 20px;
-  position: relative;
-}
-
-.content li {
-  display: none;
-  width: 1282px;
-}
-
-.content li.selected {
-  display: block;
-}
-
-textarea {
-  width: 100%;
-  height: 200px;
-  resize: none;
-  padding: 8px;
-  box-sizing: border-box;
-}
-
-.encode-result,
-.decode-result {
-  padding: 8px;
-  display: inline-block;
-  background: #f0f0f0;
-}
-
-.decode-result {
-  max-width: 100%;
-  white-space: pre-wrap;
-  word-wrap: break-word;
-  box-sizing: border-box;
-}
-
-.decode-item {
-  padding: 4px;
-  margin: 6px 0;
-  border: 1px dashed #f00;
-}
-
-.encode-result img {
-  display: block;
-  max-width: 944px;
-}
-
-.error {
-  margin: 0;
-  padding: 0;
-  color: #f00;
-}
-
-label,
-select,
-input {
-  vertical-align: middle;
-}
-
-input[type="text"],
-input[type="number"] {
-  width: 60px;
-}
-
-#decode-canvas {
-  border: 1px dotted #ccc;
-}
-
-.binarized {
-  margin: 0;
-  display: block;
-}
-
-.decode-canvas-item {
-  margin: 4px 8px 4px 0;
-}
diff --git a/packages/examples/favicon.ico b/packages/examples/favicon.ico
deleted file mode 100644
index 87a1d60a..00000000
Binary files a/packages/examples/favicon.ico and /dev/null differ