diff --git a/llamafile/highlight.h b/llamafile/highlight.h
index 96a638d5ee..394eb07bee 100644
--- a/llamafile/highlight.h
+++ b/llamafile/highlight.h
@@ -145,6 +145,8 @@ is_keyword_f is_keyword_ocaml;
 is_keyword_f is_keyword_ocaml_builtin;
 is_keyword_f is_keyword_ocaml_constant;
 is_keyword_f is_keyword_cmake;
+is_keyword_f is_keyword_css_at;
+is_keyword_f is_keyword_css_bang;
 }
 
 class Highlight {
@@ -366,6 +368,7 @@ class HighlightCss : public Highlight {
 
   private:
     int t_ = 0;
+    std::string word_;
 };
 
 class HighlightHtml : public Highlight {
diff --git a/llamafile/highlight_css.cpp b/llamafile/highlight_css.cpp
index 16f1d3581b..a0f72813d5 100644
--- a/llamafile/highlight_css.cpp
+++ b/llamafile/highlight_css.cpp
@@ -31,6 +31,8 @@ enum {
     SLASH,
     SLASH_STAR,
     SLASH_STAR_STAR,
+    AT,
+    BANG,
 };
 
 HighlightCss::HighlightCss() {
@@ -52,6 +54,7 @@ void HighlightCss::feed(std::string *r, std::string_view input) {
             t_ = SELECTOR;
             // fallthrough
 
+        Selector:
         case SELECTOR:
             if (c == '{') {
                 t_ = PROPERTY;
@@ -64,6 +67,8 @@ void HighlightCss::feed(std::string *r, std::string_view input) {
                 *r += HI_SELECTOR;
             } else if (c == '/') {
                 t_ = SELECTOR << 8 | SLASH;
+            } else if (c == '@') {
+                t_ = SELECTOR << 8 | AT;
             } else if (c == '\'') {
                 t_ = SELECTOR << 8 | QUOTE;
                 *r += HI_STRING;
@@ -77,9 +82,12 @@ void HighlightCss::feed(std::string *r, std::string_view input) {
             }
             break;
 
+        Property:
         case PROPERTY:
             if (c == '/') {
                 t_ = PROPERTY << 8 | SLASH;
+            } else if (c == '@') {
+                t_ = VALUE << 8 | AT;
             } else if (c == '\'') {
                 t_ = PROPERTY << 8 | QUOTE;
                 *r += HI_STRING;
@@ -102,9 +110,14 @@ void HighlightCss::feed(std::string *r, std::string_view input) {
             }
             break;
 
+        Value:
         case VALUE:
             if (c == '/') {
                 t_ = VALUE << 8 | SLASH;
+            } else if (c == '@') {
+                t_ = VALUE << 8 | AT;
+            } else if (c == '!') {
+                t_ = VALUE << 8 | BANG;
             } else if (c == '\'') {
                 t_ = VALUE << 8 | QUOTE;
                 *r += HI_STRING;
@@ -126,6 +139,60 @@ void HighlightCss::feed(std::string *r, std::string_view input) {
             }
             break;
 
+        case AT:
+            if (isalpha(c) || c == '-') {
+                word_ += c;
+            } else {
+                if (is_keyword_css_at(word_.data(), word_.size())) {
+                    *r += HI_BUILTIN;
+                    *r += '@';
+                    *r += word_;
+                    *r += HI_RESET;
+                } else {
+                    *r += '@';
+                    *r += word_;
+                }
+                word_.clear();
+                t_ >>= 8;
+                switch (t_ & 255) {
+                case SELECTOR:
+                    *r += HI_SELECTOR;
+                    goto Selector;
+                case PROPERTY:
+                    *r += HI_PROPERTY;
+                    goto Property;
+                case VALUE:
+                    goto Value;
+                default:
+                    __builtin_unreachable();
+                }
+            }
+            break;
+
+        case BANG:
+            if (isalpha(c) || c == '-') {
+                word_ += c;
+            } else {
+                if (is_keyword_css_bang(word_.data(), word_.size())) {
+                    *r += HI_WARNING;
+                    *r += '!';
+                    *r += word_;
+                    *r += HI_RESET;
+                } else {
+                    *r += '!';
+                    *r += word_;
+                }
+                word_.clear();
+                t_ >>= 8;
+                switch (t_ & 255) {
+                case VALUE:
+                    goto Value;
+                default:
+                    __builtin_unreachable();
+                }
+            }
+            break;
+
         case SLASH:
             if (c == '*') {
                 *r += HI_COMMENT;
@@ -207,18 +274,31 @@ void HighlightCss::feed(std::string *r, std::string_view input) {
 }
 
 void HighlightCss::flush(std::string *r) {
-    switch (t_ & 255) {
-    case SLASH:
-        *r += '/';
-        break;
-    case SELECTOR:
-    case PROPERTY:
-    case DQUOTE:
-    case DQUOTE_BACKSLASH:
-        *r += HI_RESET;
-        break;
-    default:
-        break;
+    while (t_) {
+        switch (t_ & 255) {
+        case AT:
+            *r += '@';
+            *r += word_;
+            word_.clear();
+            break;
+        case BANG:
+            *r += '!';
+            *r += word_;
+            word_.clear();
+            break;
+        case SLASH:
+            *r += '/';
+            break;
+        case SELECTOR:
+        case PROPERTY:
+        case DQUOTE:
+        case DQUOTE_BACKSLASH:
+            *r += HI_RESET;
+            break;
+        default:
+            break;
+        }
+        t_ >>= 8;
     }
     *r += HI_RESET;
     t_ = NORMAL;
diff --git a/llamafile/is_keyword_css_at.gperf b/llamafile/is_keyword_css_at.gperf
new file mode 100644
index 0000000000..1e98c895ca
--- /dev/null
+++ b/llamafile/is_keyword_css_at.gperf
@@ -0,0 +1,17 @@
+%{
+#include <string.h>
+%}
+%pic
+%compare-strncmp
+%language=ANSI-C
+%readonly-tables
+%define lookup-function-name is_keyword_css_at
+%%
+charset
+font-face
+import
+keyframes
+media
+namespace
+page
+supports
diff --git a/llamafile/is_keyword_css_bang.gperf b/llamafile/is_keyword_css_bang.gperf
new file mode 100644
index 0000000000..18c221c098
--- /dev/null
+++ b/llamafile/is_keyword_css_bang.gperf
@@ -0,0 +1,10 @@
+%{
+#include <string.h>
+%}
+%pic
+%compare-strncmp
+%language=ANSI-C
+%readonly-tables
+%define lookup-function-name is_keyword_css_bang
+%%
+important
diff --git a/llamafile/server/www/chatbot.css b/llamafile/server/www/chatbot.css
index f4b1dacb75..365269e122 100644
--- a/llamafile/server/www/chatbot.css
+++ b/llamafile/server/www/chatbot.css
@@ -260,3 +260,37 @@ ul li:first-child {
   0%, 100% { transform: translateY(0); }
   50% { transform: translateY(-4px); }
 }
+
+@media print {
+
+  .noprint {
+    display: none;
+  }
+
+  .copy-button {
+    display: none;
+  }
+
+  .chat-container {
+    box-shadow: none;
+  }
+
+  .chat-header {
+    border: none !important;
+  }
+
+  .chat-messages {
+    overflow-y: visible;
+    border: none !important;
+    height: auto !important;
+    max-width: none !important;
+  }
+
+  .message {
+    max-width: none !important;
+  }
+
+  .message.user {
+    border: 1px solid #999;
+  }
+}
diff --git a/llamafile/server/www/index.html b/llamafile/server/www/index.html
index 6d3c10dfe2..4883e559e5 100644
--- a/llamafile/server/www/index.html
+++ b/llamafile/server/www/index.html
@@ -15,12 +15,12 @@ <h1><img src="chatbot.png" alt="[logo]" width="64" height="64"> llamafile</h1>
       Loading...
     </div>
   </div>
-  <div class="typing-indicator" id="typing-indicator">
+  <div class="typing-indicator noprint" id="typing-indicator">
     <span></span>
     <span></span>
     <span></span>
   </div>
-  <div class="chat-input-container">
+  <div class="chat-input-container noprint">
     <textarea class="chat-input" id="chat-input" placeholder="Type your message..." rows="1" autocomplete="off"></textarea>
     <button class="send-button" id="send-button">Send</button>
     <button class="stop-button" id="stop-button" style="display:none">Stop</button>