Add variables in readme

Author: edisdev

README.md

@@ -46,8 +46,65 @@ circle | Boolean / This is selected are circle or area
 and customize style with css variables
 
 <img src="./resources/customize.png">
-DEMO (https://edisdev.github.io/vue-datepicker-ui)
 
+```css
+element {
+  --v-calendar-picker-color: #fff;
+  --v-calendar-input-bg-color: #fff;
+  --v-calendar-input-bg-disable-color:rgb(245, 245, 245);
+  --v-calendar-input-text-disable-color:#b8b8b9;
+  --v-calendar-select-bg-color: #fff;
+  --v-calendar-border-color: #eaeaeb;
+  --v-calendar-triangle-color: #eaeaeb;
+  --v-calendar-shadow: 0 20px 30px 0 rgba(0, 0, 0, 0.2);
+  --v-calendar-top-shadow: 3px -14px 30px 0px rgba(0, 0, 0, 0.2);
+  --v-calendar-text-color: #7b8187;
+  --v-calendar-action-color: #7b8187;
+  --v-calendar-text-disabled-color: #b8b8b9;
+  --v-calendar-view-button-color: #7b8187;
+  --v-calendar-view-button-font-weight: 400;
+  --v-calendar-view-button-font-size: 1rem;
+  --v-calendar-datepicker-icon-color: #1bba67;
+  --v-calendar-datepicker-icon-size: 1.1rem;
+  --v-calendar-active-bg-color: #1bba67;
+  --v-calendar-active-text-color: #fff;
+  --v-calendar-range-bg-color: #edfff9;
+  --v-calendar-range-text-color: #7b8187;
+  --v-calendar-range-radius: 100%;
+  --v-calendar-day-hover-bg-color: #eaeaeb;
+  --v-calendar-day-width: 40px;
+  --v-calendar-day-height: 40px;
+  --v-calendar-day-font-size: 0.9rem;
+  --v-calendar-day-font-weight: 400;
+  --v-calendar-day-name-font-size: 0.9rem;
+  --v-calendar-day-name-font-weight: 500;
+  --v-calendar-day-name-color: #7b8187;
+  --v-calendar-input-border: 1px solid #eaeaeb;
+  --v-calendar-input-text-color: #7b8187;
+  --v-calendar-input-font-size: 0.9rem;
+  --v-calendar-input-font-weight: 400;
+  --v-calendar-content-radius: 0px;
+  --v-calendar-year-font-size: 1.1rem;
+  --v-calendar-year-color: #7b8187;
+  --v-calendar-year-font-weight: 400;
+  --v-calendar-year-disabled-color: #b8b8b9;
+  --v-calendar-year-disabled-bg-color: transparent;
+  --v-calendar-year-padding: 10px;
+  --v-calendar-year-border: none;
+  --v-calendar-year-border-radius: none;
+  --v-calendar-month-font-size: 1.1rem;
+  --v-calendar-month-color: #7b8187;
+  --v-calendar-month-font-weight: 400;
+  --v-calendar-month-disabled-color: #b8b8b9;
+  --v-calendar-month-disabled-bg-color: transparent;
+  --v-calendar-month-padding: 8px;
+  --v-calendar-month-border: none;
+  --v-calendar-month-border-radius: none;
+  }
+```
+
+
+DEMO (https://edisdev.github.io/vue-datepicker-ui)
 
 #### note:
  **date-format** object values is consists to toLocaleString in js. (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleString).