将css样式移动到theme文件，减少main.py的代码行数

main.py

@@ -33,23 +33,11 @@ crazy_fns = get_crazy_functionals()
 gr.Chatbot.postprocess = format_io
 
 # 做一些外观色彩上的调整
-from theme import adjust_theme
+from theme import adjust_theme, advanced_css
 set_theme = adjust_theme()
 
-CSS = """
-.markdown-body table {
-    border: 1px solid #ddd; 
-    border-collapse: collapse;
-}
-
-.markdown-body th, .markdown-body td {
-    border: 1px solid #ddd; 
-    padding: 5px;
-}
-"""
-
 cancel_handles = []
-with gr.Blocks(theme=set_theme, analytics_enabled=False, css=CSS) as demo:
+with gr.Blocks(theme=set_theme, analytics_enabled=False, css=advanced_css) as demo:
     gr.HTML(title_html)
     with gr.Row().style(equal_height=True):
         with gr.Column(scale=2):

theme.py

@@ -80,3 +80,15 @@ def adjust_theme():
     except: 
         set_theme = None; print('gradio版本较旧, 不能自定义字体和颜色')
     return set_theme
+
+advanced_css = """
+.markdown-body table {
+    border: 1px solid #ddd; 
+    border-collapse: collapse;
+}
+
+.markdown-body th, .markdown-body td {
+    border: 1px solid #ddd; 
+    padding: 5px;
+}
+"""