diff --git a/functions.py b/functions.py
index 940a7bb..e110308 100644
--- a/functions.py
+++ b/functions.py
@@ -1,9 +1,12 @@
 import os
+import re
 import shutil
 from functools import partial
 from http.server import HTTPServer, SimpleHTTPRequestHandler
 from pathlib import Path
 
+from PIL import Image
+
 
 def read_file(file_path):
     with open(file_path, 'r') as f:
@@ -12,6 +15,7 @@ def read_file(file_path):
 
 
 def write_file(file_path, content):
+    os.makedirs(os.path.dirname(file_path), exist_ok=True)
     with open(file_path, 'w') as f:
         f.write(content)
 
@@ -26,4 +30,53 @@ def start_httpd(directory: Path, port: int = 8000, interface: str = 'localhost')
     print(f"Listen on http://{interface}:{port}, serving from '{directory}' directory...")
     handler = partial(SimpleHTTPRequestHandler, directory=directory)
     httpd = HTTPServer((interface, port), handler)
-    httpd.serve_forever()
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+    httpd.serve_forever()
+
+
+# Функция для генерации jpeg миниатюры
+def create_thumbnail(source_path, dest_path, size):  
+    with Image.open(source_path) as img:
+        if img.mode != "RGB":
+            img = img.convert("RGB")
+        img.thumbnail((size, size))
+        img.save(dest_path, "JPEG", optimize=True, quality=80)
+
+
+# This function was writenn in 2014 by some good guy: https://github.com/bmcculley/minify/blob/master/cssmin.py
+def minify_css(saveFileName, css):
+    os.makedirs(os.path.dirname(saveFileName), exist_ok=True)
+    # remove comments - this will break a lot of hacks :-P
+    css = re.sub( r'\s*/\*\s*\*/', "$$HACK1$$", css ) # preserve IE<6 comment hack
+    css = re.sub( r'/\*[\s\S]*?\*/', "", css )
+    css = css.replace( "$$HACK1$$", '/**/' ) # preserve IE<6 comment hack
+
+    # url() doesn't need quotes
+    css = re.sub( r'url\((["\'])([^)]*)\1\)', r'url(\2)', css )
+
+    # spaces may be safely collapsed as generated content will collapse them anyway
+    css = re.sub( r'\s+', ' ', css )
+
+    # shorten collapsable colors: #aabbcc to #abc
+    css = re.sub( r'#([0-9a-f])\1([0-9a-f])\2([0-9a-f])\3(\s|;)', r'#\1\2\3\4', css )
+
+    # fragment values can loose zeros
+    css = re.sub( r':\s*0(\.\d+([cm]m|e[mx]|in|p[ctx]))\s*;', r':\1;', css )
+
+    for rule in re.findall( r'([^{]+){([^}]*)}', css ):
+
+        # we don't need spaces around operators
+        selectors = [re.sub( r'(?<=[\[\(>+=])\s+|\s+(?=[=~^$*|>+\]\)])', r'', selector.strip() ) for selector in rule[0].split( ',' )]
+
+        # order is important, but we still want to discard repetitions
+        properties = {}
+        porder = []
+        for prop in re.findall( '(.*?):(.*?)(;|$)', rule[1] ):
+            key = prop[0].strip().lower()
+            if key not in porder: porder.append( key )
+            properties[ key ] = prop[1].strip()
+
+        # output rule if it contains any declarations
+        if properties:
+            f = open(saveFileName,'a')
+            f.write( "%s{%s}" % ( ','.join( selectors ), ''.join(['%s:%s;' % (key, properties[key]) for key in porder])[:-1] ) )
+            f.close()        
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