Using .less instead of .css

to generate the .css file from the .less file run: $make styles

searx/static/css/mixins.less

@@ -0,0 +1,27 @@
+/*
+ * searx, A privacy-respecting, hackable metasearch engine
+ */
+
+// Mixins
+
+.text-size-adjust (@property: 100%) {  	
+	-webkit-text-size-adjust: @property;
+	-ms-text-size-adjust: @property;
+	-moz-text-size-adjust: @property;
+	text-size-adjust: @property;
+}
+
+.rounded-corners (@radius: 4px) {	
+	-webkit-border-radius: @radius;
+	-moz-border-radius: @radius;
+	border-radius: @radius;
+}
+
+.user-select () {
+	-webkit-touch-callout: none;
+	-webkit-user-select: none;
+	-khtml-user-select: none;
+	-moz-user-select: none;
+	-ms-user-select: none;
+	user-select: none;
+}