diff --git a/css/style.css b/css/style.css
index b1eb45c..1c028c8 100644
--- a/css/style.css
+++ b/css/style.css
@@ -38,6 +38,8 @@ header h1 {
   border-right: 0; }
   .navbar ul {
     padding-bottom: 0; }
+  .navbar li {
+    margin: 0; }
 
 .dropdown-menu {
   box-shadow: 0px 2px 6px rgba(0, 0, 0, 0.3), inset 0px -2px 0px rgba(0, 0, 0, 0.2); }
@@ -53,6 +55,7 @@ ul.social {
   margin: auto;
   text-align: center; }
   ul.social li {
+    margin: 0;
     list-style: none;
     display: inline; }
     ul.social li a {
diff --git a/scss/style.scss b/scss/style.scss
index 86ce976..349025f 100644
--- a/scss/style.scss
+++ b/scss/style.scss
@@ -13,10 +13,16 @@ $border-size: 1px;
   border: $border-size solid rgba(0, 0, 0, 0.3)
 }
 
-@mixin border-radius {
+@mixin border-radius() {
   border-radius: $border-radius $border-radius $border-radius $border-radius;
 }
 
+@mixin li-no-margin() {
+  li {
+    margin: 0;
+  }
+}
+
 #wrapper {
   background: #64b5f6 url('../img/background.png') center bottom repeat-x;
 }
@@ -60,6 +66,7 @@ header h1 {
   ul {
     padding-bottom:0;
   }
+  @include li-no-margin();
 }
 
 .dropdown-menu {
@@ -81,6 +88,7 @@ ul.social {
   margin:auto;
   text-align:center;
   li {
+    margin:0;
     list-style: none;
     display: inline;
     a {
@@ -279,9 +287,7 @@ a.list-group-item:hover {
   border: 0;
   background-color:#eeeeec;
   margin-bottom:1.2em;
-  li {
-    margin:0;
-  }
+  @include li-no-margin();
 }
 
 /* ------------------ PARTAGE RESEAUX SOCIAUX ------------------- */