diff --git a/components/Nav/Navbar.vue b/components/Nav/Navbar.vue
index 4863d82e6a4ab8b3709459d2462b3c10f012ac83..06fdd172676f58328b192d135ff763f5d640032c 100644
--- a/components/Nav/Navbar.vue
+++ b/components/Nav/Navbar.vue
@@ -1,5 +1,5 @@
 <template>
-  <v-app-bar :elevation="0" border>
+  <v-app-bar :elevation="0" border density="prominent">
     <template #prepend>
       <v-app-bar-nav-icon @click.stop="drawer = !drawer"></v-app-bar-nav-icon>
       <!-- <Logo height="45px" /> -->
@@ -70,6 +70,7 @@ const sections = ref([
     href: runtimeConfig.public.defenseFinderWebservice,
   },
   { id: "refseq", label: "REFSEQ", href: refinedRefSeqPath.value },
+  { id: "toto", label: "Help", href: "/help" },
 ]);
 const drawer = ref(true);
 
diff --git a/content/1.help.md b/content/1.help.md
new file mode 100644
index 0000000000000000000000000000000000000000..aa191c1c92c6a6e1835e7540648189b868068d05
--- /dev/null
+++ b/content/1.help.md
@@ -0,0 +1,10 @@
+---
+title: help
+layout: article
+icon: 'md:list'
+---
+
+
+
+## test
+de l'aide
\ No newline at end of file
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diff --git a/pages/refseq.vue b/pages/refseq.vue
index e905c3d1c2d2822926a1e9ef824dfdd3277ff940..fc10c341553b26cbbea917dcbbbcede36105b969 100644
--- a/pages/refseq.vue
+++ b/pages/refseq.vue
@@ -20,8 +20,8 @@ const {
   queryContent("/_partial/refseq").where({ _partial: true }).findOne()
 );
 
-const availableTaxo = ref(["species", "genus"]);
-const selectedTaxoRank = ref("species");
+const availableTaxo = ref(["species", "genus", "phylum"]);
+const selectedTaxoRank = ref("phylum");
 const sanitizedRefseq = computed(() => {
   if (refseqData.value?.body) {
     return refseqData.value.body;
@@ -46,6 +46,7 @@ const headers = ref([
     title: "System",
     key: "type",
   },
+  { title: "Phylum", key: "phylum" },
   { title: "Genus", key: "genus" },
   { title: "Species", key: "species" },
 ]);
@@ -80,32 +81,32 @@ function filterOnlyCapsText(value, query, item) {
 const computedDistriSystemOptions = computed(() => {
   const groupYOption = facetDistriSystem.value
     ? {
-        fy: "type",
-        y: selectedTaxoRank.value,
-        fill: selectedTaxoRank.value,
+        fx: "type",
+        x: selectedTaxoRank.value,
+        // fill: selectedTaxoRank.value,
         tip: true,
         sort: { y: "-x" },
       }
     : {
-        y: "type",
+        x: "type",
         tip: true,
-        fill: selectedTaxoRank.value,
-        sort: { y: "-x" },
+        // fill: selectedTaxoRank.value,
+        sort: { x: "-y" },
       };
 
   return {
     marginLeft: facetDistriSystem.value ? 120 : 112,
-    x: { label: null },
+    x: { label: null, tickRotate: 40 },
     y: { grid: true },
     color: { legend: true },
     width: computedWidth.value,
     height: facetDistriSystem.value ? height.value * 8 : height.value * 2,
     marks: [
       Plot.frame(),
-      Plot.barX(
+      Plot.barY(
         unref(selectedRefSeq.value),
-        Plot.groupY(
-          { x: facetDistriSystem.value ? "proportion-facet" : "count" },
+        Plot.groupX(
+          { y: facetDistriSystem.value ? "proportion-facet" : "count" },
           groupYOption
         )
       ),
@@ -126,7 +127,7 @@ const computedDistriTaxoOptions = computed(() => {
         y: selectedTaxoRank.value,
         tip: true,
         fill: "type",
-        offset: "normalize",
+        // offset: "normalize",
         sort: { y: "x", reverse: true },
       };
 
@@ -150,10 +151,7 @@ const computedDistriTaxoOptions = computed(() => {
       Plot.frame(),
       Plot.barX(
         unref(selectedRefSeq.value),
-        Plot.groupY(
-          { x: facet.value ? "proportion-facet" : "count" },
-          groupYOption
-        )
+        Plot.groupY({ x: "count" }, groupYOption)
       ),
     ],
   };