diff --git a/searx/static/oscar/css/bootstrap.min.css b/searx/static/oscar/css/bootstrap.min.css
index 5cd19edb..a9f57473 100644
Binary files a/searx/static/oscar/css/bootstrap.min.css and b/searx/static/oscar/css/bootstrap.min.css differ
diff --git a/searx/static/oscar/css/typeahead.css b/searx/static/oscar/css/typeahead.css
deleted file mode 100644
index fde250d6..00000000
--- a/searx/static/oscar/css/typeahead.css
+++ /dev/null
@@ -1,189 +0,0 @@
-/*
- * typehead.js-bootstrap3.less
- * @version 0.2.3
- * https://github.com/hyspace/typeahead.js-bootstrap3.less
- *
- * Licensed under the MIT license:
- * http://www.opensource.org/licenses/MIT
- */
-.has-warning .twitter-typeahead .tt-input,
-.has-warning .twitter-typeahead .tt-hint {
-  border-color: #8a6d3b;
-  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
-  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
-}
-.has-warning .twitter-typeahead .tt-input:focus,
-.has-warning .twitter-typeahead .tt-hint:focus {
-  border-color: #66512c;
-  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 6px #c0a16b;
-  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 6px #c0a16b;
-}
-.has-error .twitter-typeahead .tt-input,
-.has-error .twitter-typeahead .tt-hint {
-  border-color: #a94442;
-  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
-  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
-}
-.has-error .twitter-typeahead .tt-input:focus,
-.has-error .twitter-typeahead .tt-hint:focus {
-  border-color: #843534;
-  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 6px #ce8483;
-  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 6px #ce8483;
-}
-.has-success .twitter-typeahead .tt-input,
-.has-success .twitter-typeahead .tt-hint {
-  border-color: #3c763d;
-  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
-  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
-}
-.has-success .twitter-typeahead .tt-input:focus,
-.has-success .twitter-typeahead .tt-hint:focus {
-  border-color: #2b542c;
-  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 6px #67b168;
-  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 6px #67b168;
-}
-.input-group .twitter-typeahead:first-child .tt-input,
-.input-group .twitter-typeahead:first-child .tt-hint {
-  border-bottom-left-radius: 4px;
-  border-top-left-radius: 4px;
-}
-.input-group .twitter-typeahead:last-child .tt-input,
-.input-group .twitter-typeahead:last-child .tt-hint {
-  border-bottom-right-radius: 4px;
-  border-top-right-radius: 4px;
-}
-.input-group.input-group-sm .twitter-typeahead .tt-input,
-.input-group.input-group-sm .twitter-typeahead .tt-hint {
-  height: 30px;
-  padding: 5px 10px;
-  font-size: 12px;
-  line-height: 1.5;
-  border-radius: 3px;
-}
-select.input-group.input-group-sm .twitter-typeahead .tt-input,
-select.input-group.input-group-sm .twitter-typeahead .tt-hint {
-  height: 30px;
-  line-height: 30px;
-}
-textarea.input-group.input-group-sm .twitter-typeahead .tt-input,
-textarea.input-group.input-group-sm .twitter-typeahead .tt-hint,
-select[multiple].input-group.input-group-sm .twitter-typeahead .tt-input,
-select[multiple].input-group.input-group-sm .twitter-typeahead .tt-hint {
-  height: auto;
-}
-.input-group.input-group-sm .twitter-typeahead:not(:first-child):not(:last-child) .tt-input,
-.input-group.input-group-sm .twitter-typeahead:not(:first-child):not(:last-child) .tt-hint {
-  border-radius: 0;
-}
-.input-group.input-group-sm .twitter-typeahead:first-child .tt-input,
-.input-group.input-group-sm .twitter-typeahead:first-child .tt-hint {
-  border-bottom-left-radius: 3px;
-  border-top-left-radius: 3px;
-  border-bottom-right-radius: 0;
-  border-top-right-radius: 0;
-}
-.input-group.input-group-sm .twitter-typeahead:last-child .tt-input,
-.input-group.input-group-sm .twitter-typeahead:last-child .tt-hint {
-  border-bottom-left-radius: 0;
-  border-top-left-radius: 0;
-  border-bottom-right-radius: 3px;
-  border-top-right-radius: 3px;
-}
-.input-group.input-group-lg .twitter-typeahead .tt-input,
-.input-group.input-group-lg .twitter-typeahead .tt-hint {
-  height: 46px;
-  padding: 10px 16px;
-  font-size: 18px;
-  line-height: 1.33;
-  border-radius: 6px;
-}
-select.input-group.input-group-lg .twitter-typeahead .tt-input,
-select.input-group.input-group-lg .twitter-typeahead .tt-hint {
-  height: 46px;
-  line-height: 46px;
-}
-textarea.input-group.input-group-lg .twitter-typeahead .tt-input,
-textarea.input-group.input-group-lg .twitter-typeahead .tt-hint,
-select[multiple].input-group.input-group-lg .twitter-typeahead .tt-input,
-select[multiple].input-group.input-group-lg .twitter-typeahead .tt-hint {
-  height: auto;
-}
-.input-group.input-group-lg .twitter-typeahead:not(:first-child):not(:last-child) .tt-input,
-.input-group.input-group-lg .twitter-typeahead:not(:first-child):not(:last-child) .tt-hint {
-  border-radius: 0;
-}
-.input-group.input-group-lg .twitter-typeahead:first-child .tt-input,
-.input-group.input-group-lg .twitter-typeahead:first-child .tt-hint {
-  border-bottom-left-radius: 6px;
-  border-top-left-radius: 6px;
-  border-bottom-right-radius: 0;
-  border-top-right-radius: 0;
-}
-.input-group.input-group-lg .twitter-typeahead:last-child .tt-input,
-.input-group.input-group-lg .twitter-typeahead:last-child .tt-hint {
-  border-bottom-left-radius: 0;
-  border-top-left-radius: 0;
-  border-bottom-right-radius: 6px;
-  border-top-right-radius: 6px;
-}
-.twitter-typeahead {
-  width: 100%;
-}
-.input-group .twitter-typeahead {
-  display: table-cell !important;
-  float: left;
-}
-.twitter-typeahead .tt-hint {
-  color: #999999;
-}
-.twitter-typeahead .tt-input {
-  z-index: 2;
-}
-.twitter-typeahead .tt-input[disabled],
-.twitter-typeahead .tt-input[readonly],
-fieldset[disabled] .twitter-typeahead .tt-input {
-  cursor: not-allowed;
-  background-color: #eeeeee !important;
-}
-.tt-dropdown-menu {
-  position: absolute;
-  top: 100%;
-  left: 0;
-  z-index: 1000;
-  min-width: 160px;
-  width: 100%;
-  padding: 5px 0;
-  margin: 2px 0 0;
-  list-style: none;
-  font-size: 14px;
-  background-color: #ffffff;
-  border: 1px solid #cccccc;
-  border: 1px solid rgba(0, 0, 0, 0.15);
-  border-radius: 4px;
-  -webkit-box-shadow: 0 6px 12px rgba(0, 0, 0, 0.175);
-  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.175);
-  background-clip: padding-box;
-  *border-right-width: 2px;
-  *border-bottom-width: 2px;
-}
-.tt-dropdown-menu .tt-suggestion {
-  display: block;
-  padding: 3px 20px;
-  clear: both;
-  font-weight: normal;
-  line-height: 1.42857143;
-  color: #333333;
-  white-space: nowrap;
-}
-.tt-dropdown-menu .tt-suggestion.tt-cursor {
-  text-decoration: none;
-  outline: 0;
-  background-color: #f5f5f5;
-  color: #262626;
-}
-.tt-dropdown-menu .tt-suggestion.tt-cursor a {
-  color: #262626;
-}
-.tt-dropdown-menu .tt-suggestion p {
-  margin: 0;
-}
diff --git a/searx/static/oscar/less/bootstrap/bootstrap.less b/searx/static/oscar/less/bootstrap/bootstrap.less
index 61b77474..79e7abd9 100644
--- a/searx/static/oscar/less/bootstrap/bootstrap.less
+++ b/searx/static/oscar/less/bootstrap/bootstrap.less
@@ -48,3 +48,6 @@
 // Utility classes
 @import "utilities.less";
 @import "responsive-utilities.less";
+
+// own additions
+@import "typeahead.less";
diff --git a/searx/static/oscar/less/bootstrap/typeahead.less b/searx/static/oscar/less/bootstrap/typeahead.less
new file mode 100644
index 00000000..91e391b4
--- /dev/null
+++ b/searx/static/oscar/less/bootstrap/typeahead.less
@@ -0,0 +1,153 @@
+/*
+ * typehead.js-bootstrap3.less
+ * @version 0.2.3
+ * https://github.com/hyspace/typeahead.js-bootstrap3.less
+ *
+ * Licensed under the MIT license:
+ * http://www.opensource.org/licenses/MIT
+ */
+
+//custom mixin for .form-control-validation
+.typeahead-form-control(@border-color: #ccc;) {
+  border-color: @border-color;
+  .box-shadow(inset 0 1px 1px rgba(0,0,0,.075)); // Redeclare so transitions work
+  &:focus {
+    border-color: darken(@border-color, 10%);
+    @shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 6px lighten(@border-color, 20%);
+    .box-shadow(@shadow);
+  }
+}
+
+//main styles for control
+.tt-input,
+.tt-hint {
+  .twitter-typeahead &{
+    //validation states
+    .has-warning &{
+      .typeahead-form-control(@state-warning-text);
+    }
+    .has-error &{
+      .typeahead-form-control(@state-danger-text);
+    }
+    .has-success &{
+      .typeahead-form-control(@state-success-text);
+    }
+  }
+
+  //border
+  .input-group .twitter-typeahead:first-child &{
+    .border-left-radius(@border-radius-base);
+  }
+  .input-group .twitter-typeahead:last-child &{
+    .border-right-radius(@border-radius-base);
+  }
+
+  //sizing - small:size and border
+  .input-group.input-group-sm .twitter-typeahead &{
+    .input-size(@input-height-small; @padding-small-vertical; @padding-small-horizontal; @font-size-small; @line-height-small; @border-radius-small);
+  }
+  .input-group.input-group-sm .twitter-typeahead:not(:first-child):not(:last-child) &{
+    border-radius: 0;
+  }
+  .input-group.input-group-sm .twitter-typeahead:first-child &{
+    .border-left-radius(@border-radius-small);
+    .border-right-radius(0);
+  }
+  .input-group.input-group-sm .twitter-typeahead:last-child &{
+    .border-left-radius(0);
+    .border-right-radius(@border-radius-small);
+  }
+
+  //sizing - large:size and border
+  .input-group.input-group-lg .twitter-typeahead &{
+    .input-size(@input-height-large; @padding-large-vertical; @padding-large-horizontal; @font-size-large; @line-height-large; @border-radius-large);
+  }
+  .input-group.input-group-lg .twitter-typeahead:not(:first-child):not(:last-child) &{
+    border-radius: 0;
+  }
+  .input-group.input-group-lg .twitter-typeahead:first-child &{
+    .border-left-radius(@border-radius-large);
+    .border-right-radius(0);
+  }
+  .input-group.input-group-lg .twitter-typeahead:last-child &{
+    .border-left-radius(0);
+    .border-right-radius(@border-radius-large);
+  }
+}
+
+//for wrapper
+.twitter-typeahead {
+  width: 100%;
+  .input-group &{
+    //overwrite `display:inline-block` style
+    display: table-cell!important;
+    float: left;
+  }
+}
+
+//particular style for each other
+.twitter-typeahead .tt-hint {
+  color: @text-muted;//color - hint
+}
+.twitter-typeahead .tt-input {
+  z-index: 2;
+  //disabled status
+  //overwrite inline styles of .tt-query
+  &[disabled],
+  &[readonly],
+  fieldset[disabled] & {
+    cursor: not-allowed;
+    //overwirte inline style
+    background-color: @input-bg-disabled!important;
+  }
+}
+
+//dropdown styles
+.tt-dropdown-menu {
+  //dropdown menu
+  position: absolute;
+  top: 100%;
+  left: 0;
+  z-index: @zindex-dropdown;
+  min-width: 160px;
+  width: 100%;
+  padding: 5px 0;
+  margin: 2px 0 0;
+  list-style: none;
+  font-size: @font-size-base;
+  background-color: @dropdown-bg;
+  border: 1px solid @dropdown-fallback-border;
+  border: 1px solid @dropdown-border;
+  border-radius: @border-radius-base;
+  .box-shadow(0 6px 12px rgba(0,0,0,.175));
+  background-clip: padding-box;
+  *border-right-width: 2px;
+  *border-bottom-width: 2px;
+
+  .tt-suggestion {
+    //item
+    display: block;
+    padding: 3px 20px;
+    clear: both;
+    font-weight: normal;
+    line-height: @line-height-base;
+    color: @dropdown-link-color;
+    white-space: nowrap;
+    text-align: left;
+    cursor: pointer !important;
+    &.tt-cursor {
+      //item selected
+      text-decoration: none;
+      outline: 0;
+      background-color: @dropdown-link-hover-bg;
+      color: @dropdown-link-hover-color;
+      a {
+        //link in item selected
+        color: @dropdown-link-hover-color;
+      }
+    }
+    p {
+      margin: 0;
+    }
+  }
+}
diff --git a/searx/templates/oscar/base.html b/searx/templates/oscar/base.html
index e2d48184..6138404a 100644
--- a/searx/templates/oscar/base.html
+++ b/searx/templates/oscar/base.html
@@ -9,7 +9,6 @@
     <title>{% block title %}{% endblock %}searx</title>
     
     <link rel="stylesheet" href="{{ url_for('static', filename='css/bootstrap.min.css') }}" type="text/css" />
-    {% if autocomplete %}<link rel="stylesheet" href="{{ url_for('static', filename='css/typeahead.css') }}" type="text/css" />{% endif %}
     <link rel="stylesheet" href="{{ url_for('static', filename='css/oscar.min.css') }}" type="text/css" />  
     
     <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->