Reduce amount of blank pages when printing in Chrome

Close #1196

_sass/minimal-mistakes/_print.scss

@@ -15,19 +15,20 @@
   }
 
   html {
-    font-size: 16px;
     margin: 0;
     padding: 0;
+    min-height: auto !important;
+    font-size: 16px;
   }
 
   body {
-    -moz-osx-font-smoothing: grayscale;
-    -webkit-font-smoothing: antialiased;
+    margin: 0 auto;
     background: #fff !important;
     color: #000 !important;
     font-size: 1rem;
     line-height: 1.5;
-    margin: 0 auto;
+    -moz-osx-font-smoothing: grayscale;
+    -webkit-font-smoothing: antialiased;
     text-rendering: optimizeLegibility;
   }
 
@@ -185,6 +186,16 @@
     content: " (" attr(title) ")";
   }
 
+  #main {
+    max-width: 100%;
+  }
+
+  .page {
+    margin: 0;
+    padding: 0;
+    width: 100%;
+  }
+
   .page-break,
   .page-break-before {
     page-break-before: always;
@@ -233,7 +244,9 @@
   .author__content,
   .author__urls-wrapper,
   .nav__list,
+  .sidebar,
   .adsbygoogle {
     display: none !important;
+    height: 1px !important;
   }
-}
+}