增加部分基础组件

frontend/static/css/simditor-markdown.css

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+.simditor .markdown-editor {
+  display: none;
+}
+.simditor .markdown-editor textarea {
+  display: block;
+  width: 100%;
+  min-height: 200px;
+  box-sizing: border-box;
+  padding: 22px 15px 40px;
+  border: none;
+  border-bottom: 1px solid #dfdfdf;
+  resize: none;
+  outline: none;
+  font-size: 16px;
+}
+.simditor.simditor-markdown .markdown-editor {
+  display: block;
+}
+.simditor.simditor-markdown .simditor-body {
+  min-height: 100px;
+  background: #f3f3f3;
+}
+.simditor.simditor-markdown .simditor-placeholder {
+  display: none !important;
+}
+.simditor .simditor-toolbar .toolbar-item.toolbar-item-markdown .simditor-icon {
+  font-size: 18px;
+}

frontend/static/css/webuploader.css

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+.webuploader-container {
+	position: relative;
+}
+.webuploader-element-invisible {
+	position: absolute !important;
+	clip: rect(1px 1px 1px 1px); /* IE6, IE7 */
+    clip: rect(1px,1px,1px,1px);
+}
+.webuploader-pick {
+	position: relative;
+	display: inline-block;
+	cursor: pointer;
+	background: #00b7ee;
+	padding: 10px 15px;
+	color: #fff;
+	text-align: center;
+	border-radius: 3px;
+	overflow: hidden;
+}
+.webuploader-pick-hover {
+	background: #00a2d4;
+}
+
+.webuploader-pick-disable {
+	opacity: 0.6;
+	pointer-events:none;
+}
+