Use import type statement in readme

README.md

@@ -7,7 +7,7 @@ TypeScript and Flow definitions for CSS, generated by [data from MDN](https://gi
 **TypeScript**
 
 ```ts
-import * as CSS from 'csstype';
+import type * as CSS from 'csstype';
 
 const style: CSS.Properties = {
   colour: 'white', // Type error on property
@@ -121,7 +121,7 @@ All interfaces has two optional generic argument to define length and time: `CSS
 ## Usage
 
 ```ts
-import * as CSS from 'csstype';
+import type * as CSS from 'csstype';
 
 const style: CSS.Properties = {
   width: '10px',
@@ -132,7 +132,7 @@ const style: CSS.Properties = {
 In some cases, like for CSS-in-JS libraries, an array of values is a way to provide fallback values in CSS. Using `CSS.PropertiesFallback` instead of `CSS.Properties` will add the possibility to use any property value as an array of values.
 
 ```ts
-import * as CSS from 'csstype';
+import type * as CSS from 'csstype';
 
 const style: CSS.PropertiesFallback = {
   display: ['-webkit-flex', 'flex'],
@@ -143,7 +143,7 @@ const style: CSS.PropertiesFallback = {
 There's even string literals for pseudo selectors and elements.
 
 ```ts
-import * as CSS from 'csstype';
+import type * as CSS from 'csstype';
 
 const pseudos: { [P in CSS.SimplePseudos]?: CSS.Properties } = {
   ':hover': {
@@ -155,7 +155,7 @@ const pseudos: { [P in CSS.SimplePseudos]?: CSS.Properties } = {
 Hyphen cased (kebab cased) properties are provided in `CSS.PropertiesHyphen` and `CSS.PropertiesHyphenFallback`. It's not **not** added by default in `CSS.Properties`. To allow both of them, you can simply extend with `CSS.PropertiesHyphen` or/and `CSS.PropertiesHyphenFallback`.
 
 ```ts
-import * as CSS from 'csstype';
+import type * as CSS from 'csstype';
 
 interface Style extends CSS.Properties, CSS.PropertiesHyphen {}
 
@@ -170,7 +170,7 @@ const style: Style = {
 Adding type checked CSS properties to a `HTMLElement`.
 
 ```ts
-import * as CSS from 'csstype';
+import type * as CSS from 'csstype';
 
 const style: CSS.Properties = {
   color: 'red',
@@ -200,7 +200,7 @@ _If you're using CSS Custom Properties you can step directly to step 3._
 
       ```ts
       // My css.d.ts file
-      import * as CSS from 'csstype';
+      import type * as CSS from 'csstype';
 
       declare module 'csstype' {
         interface Properties {