diff --git a/themes/chosto/layouts/_default/single.html b/themes/chosto/layouts/_default/single.html
index b22010b..17c195c 100644
--- a/themes/chosto/layouts/_default/single.html
+++ b/themes/chosto/layouts/_default/single.html
@@ -10,7 +10,7 @@
   <div class="columns is-variable is-desktop is-8">
     <!-- To ease reading, the content is a bit wider for small screens
     but not too wide for big screens -->
-    <aside class="menu column mt-2 is-one-fifth-desktop is-one-quarter-fullhd is-full-tablet is-full-mobile">
+    <aside class="menu column mt-2 is-one-fifth-desktop is-one-fifth-fullhd is-full-tablet is-full-mobile">
       {{ if (and .IsPage (eq .FirstSection.Section "posts"))}}
       {{ with .CurrentSection }}
       {{ if .Params.Title }}
@@ -28,7 +28,7 @@
       {{ end }}
       {{ end }}
     </aside>
-    <section class="column content is-three-fifths-desktop is-half-fullhd is-full-tablet is-full-mobile">
+    <section class="column content is-three-fifths-desktop is-three-fifths-fullhd is-full-tablet is-full-mobile">
       <div>
         <article>
           <!-- If this is part of a thematic serie, remind it so it is clear -->