Organised sass folders

scss/generic/_mixins.scss

@@ -0,0 +1,38 @@
+@mixin resp-min($size) {
+  @media screen and (min-width: $size) { 
+    @content; 
+  }
+}
+
+@mixin resp-max($size) {
+  @media screen and (max-width: $size) { 
+    @content; 
+  }
+}
+
+@mixin font-size($px) {
+  font-size: $px + px;
+  font-size: #{$px / $base-font-size}rem;
+}
+
+@mixin background-size($size) {
+  -webkit-background-size: $size;
+     -moz-background-size: $size;
+       -o-background-size: $size;
+          background-size: $size;
+}
+
+@mixin placeholder {
+  ::-webkit-input-placeholder {
+    @content; 
+  }
+  :-moz-placeholder {
+    @content; 
+  }
+  ::-moz-placeholder {
+    @content; 
+  }
+  :-ms-input-placeholder {  
+    @content; 
+  }
+}