cssAudio - Activefile-genericCSS - ActiveGeneric - ActiveHTML - ActiveImage - ActiveJS - ActiveSVG - ActiveText - Activefile-genericVideo - ActiveLovehtmlicon-new-collectionicon-personicon-teamlog-outoctocatpop-outspinnerstartv

Standalone SVG CSS-only star rating component

A Pen By Damián Muti Pro

Pen Settings

About HTML Preprocessors

HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

Learn more · Versions

Adding Classes

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. So you don't have access to higher-up elements like the <html> tag. If you want to add classes there, that can effect the whole document, this is the place to do it.

About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

!
Insecure Resource

The resource you are linking to is using the 'http' protocol, which may not work when the browser is using https.

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

Learn more · Versions

CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

     

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

     

Add External CSS

These stylesheets will be added in this order and before the code you write in the CSS editor. You can also add another Pen here, and it will pull the CSS from it. Try typing "font" or "ribbon" below.

About External Resources

You can apply CSS to your Pen from any stylesheet on the web. Just put a URL to it here and we'll apply it, in the order you have them, before the CSS in the Pen itself.

If the stylesheet you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

You can also link to another Pen here, and we'll pull the CSS from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

Learn more

Quick-add: + add another resource

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient. For instance, CoffeeScript can help prevent easy-to-make mistakes and offer a cleaner syntax and Babel can bring ECMAScript 6 features to browsers that only support ECMAScript 5.

Learn more · Versions

Add External JavaScript

These scripts will run in this order and before the code in the JavaScript editor. You can also link to another Pen here, and it will run the JavaScript from it. Also try typing the name of any popular library.

About External Resources

You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.

If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

Learn more

Quick-add: + add another resource

Code Indentation

     

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

HTML

            
              <div class="wrapper">
  <h1>Standalone SVG CSS-only Star Rating Component</h1>
  
  <div class="rating-holder">
    <div class="c-rating c-rating--small" data-rating-value="2">
      <button>1</button>
      <button>2</button>
      <button>3</button>
      <button>4</button>
      <button>5</button>
    </div>
  </div>
  
  <div class="rating-holder">
    <div class="c-rating c-rating--regular" data-rating-value="3.25">
      <button>1</button>
      <button>2</button>
      <button>3</button>
      <button>4</button>
      <button>5</button>
    </div>
  </div>
  
  <div class="rating-holder">
    <div class="c-rating c-rating--big" data-rating-value="4.5">
      <button>1</button>
      <button>2</button>
      <button>3</button>
      <button>4</button>
      <button>5</button>
    </div>
  </div>
</div>
!

CSS

            
              ////
/// Star Rating
/// @group components
/// @author Damián Muti
////

@import url('https://fonts.googleapis.com/css?family=Roboto+Slab:400');

///
$rating-min-value: 0 !default;
///
$rating-max-value: 5 !default;
///
$rating-steps-value: .25 !default;
///
$rating-color-empty: '%23ddd' !default;
///
$rating-color-full: gold !default;
///
$rating-color-hover: grey !default;
/// This variable is a map containing the "d" attribute of each of the SVG icons
$rating-icons-paths: (
  quarter: 'M196.208 415.2v-224.8l-139.504 20.272 100.944 98.384-23.84 138.928z',
  half: 'M258.672 64l-62.384 126.4-139.504 20.272 100.944 98.384-23.84 138.928 124.768-65.6v-318.4z',
  three-quarters: 'M321.616 190.496l-0.656-0.096-62.384-126.4-62.384 126.4-139.504 20.272 100.944 98.384-23.84 138.928 124.768-65.6 63.024 33.136z',
  full: 'M457.888 210.672l-139.504-20.272-62.384-126.4-62.384 126.4-139.504 20.272 100.944 98.384-23.84 138.928 124.768-65.6 124.768 65.6-23.84-138.928c0 0 100.944-98.384 100.944-98.384z'
);

/// Creates a dynamic list of values that increment each .25 from 0 to 5
/// @return {list} 
@function rating-values() {
  $rating-values: ();

  @for $i from $rating-min-value through ($rating-max-value / $rating-steps-value) {
    $rating-value: abs($i * $rating-steps-value);
    $rating-values: append($rating-values, $rating-value, 'comma');
  }

  @return $rating-values;
}

/// Generates an SVG with a given fill color depending on the type of icon passed as parameter. The SVG string is scaped for cross-browser support.
/// @param {string} $icon - Type of icon. Accepted values: `quarter`, `half`, `three-quarters` or `full`.
/// @param {color} $color - Passes the fill color of the SVG icon that is being generated. Note: Hexa color values must be escaped for cross-browser support.
/// @return {string} background value.
@function get-icon($icon, $color) {
  @if not index(quarter half three-quarters full, $icon) {
    @error "Interaction type must be either `quarter`, `half`, `three-quarters` or `full`.";
  }
  
  @return url('data:image/svg+xml;utf8,%3Csvg%20version%3D%221.1%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20xmlns%3Axlink%3D%22http%3A%2F%2Fwww.w3.org%2F1999%2Fxlink%22%20width%3D%22512%22%20height%3D%22512%22%20viewBox%3D%220%200%20512%20512%22%3E%3Cpath%20fill%3D%22' + $color + '%22%20d%3D%22' + map-get($rating-icons-paths, $icon) + '%22%3E%3C%2Fpath%3E%3C%2Fsvg%3E') center / cover no-repeat;
}

/// This is a CSS-only star rating component that shows the proper rating depending on a data-attribute value. JS logic behind this component should round up values per quarter.
/// @param {number} $star-size [20px] - Provides width and height for each of the stars.
/// @param {string} $rating-element [button] - Element to use for each of the stars.
/// @param {string} $interaction-type [representative] - Indicates whether this component should be clickable or representative. Accepted values: `clickable` or `representative`.
/// @example scss
///   .class {
///     c-rating(toem(20px), button, clickable);
///   }
/// @example markup
///   <div class="c-rating" data-rating-value="3.25">
///     <span>1</span>
///     <span>2</span>
///     <span>3</span>
///     <span>4</span>
///     <span>5</span>
///   </div>
@mixin c-rating($star-size: 20px, $star-element: button, $interaction-type: representative) {
  @if not index(clickable representative, $interaction-type) {
    @error "Interaction type must be either `clickable` or `representative`.";
  }
  
  #{$star-element} {
    display: inline-block;
    float: left;
    width: $star-size;
    height: $star-size;
    border: 0;
    text-indent: -9999px;
    outline: none;
    background: get-icon(full, $rating-color-empty);

    @if $interaction-type == clickable {
      cursor: pointer;
      transition: background 0.25s ease;
      
      // Override background images on hover state
      &:hover,
      &:hover ~ #{$star-element} {
        background: get-icon(full, $rating-color-empty) !important;
      }
    }
  }
  
  // Override background images on hover state
  @if $interaction-type == clickable {
    &:hover {
      #{$star-element} {
        background: get-icon(full, $rating-color-hover) !important;
      }
    }
  }

  @each $rating-value in rating-values() {
    // Get the next higher integer.
    $rating-value-ceil: ceil($rating-value);

    &[data-rating-value="#{$rating-value}"] {
      #{$star-element}:nth-child(-n+#{$rating-value-ceil}) {
        background: get-icon(full, $rating-color-full);
      }

      #{$star-element}:nth-child(#{$rating-value-ceil}) {
        // Evaluate which fraction of a star this value is and add the proper background
        @if str-slice("#{$rating-value}", 2, 4) == '.25' {
          background: get-icon(quarter, $rating-color-full), get-icon(full, $rating-color-empty)
        }
        @else if str-slice("#{$rating-value}", 2, 4) == '.5' {
          background: get-icon(half, $rating-color-full), get-icon(full, $rating-color-empty)
        }
        @else if str-slice("#{$rating-value}", 2, 4) == '.75' {
          background: get-icon(three-quarters, $rating-color-full), get-icon(full, $rating-color-empty)
        }
      }
    }
  }
}

/*
 * General styles.
 * Not necessary for the component to work
*/

/// Convert to EMs function
/// @param {number} target - The value to be converted
/// @param {number} context [$msuxf-font-size] The base font size
/// @return {em} value
@function toem($target, $context: 16px) {
  @if $target == 0 {
    @return 0
  }

  @return $target / $context+0em;
}

body {
  width: 100vw;
  height: 100vh;
  font-family: 'Roboto Slab', serif;
  text-align: center;
  background: linear-gradient(to bottom, #de6262, #ffb88c);
}

.wrapper {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 700px;
  transform: translate(-50%, -50%);
  
  h1 {
    margin-bottom: 75px;
    font-size: 56px;
    font-weight: 400;
    color: #fff;
  }
}

.rating-holder {
  display: inline-block;
  padding: toem(10px) toem(30px);
  margin: 0 10px;
  background-color: #fff;
  border-radius: toem(25px);
  box-sizing: border-box;
}

.c-rating {
  @include c-rating(toem(20px), button, clickable);
  
  &--small {
    font-size: 50%
  }
  
  &--big {
    font-size: 150%;
  }
}
!

JS

            
              /// This is a CSS-only component that dynamically generates each of the SVG icons to be used as background images for each of the stars.
/// For the rating value to be displayed , "data-rating-value" HTML attribute must be updated  and calculated rounding every 0.25 to reflect the proper rating.
!
999px
Close

Asset uploading is a PRO feature.

As a PRO member, you can drag-and-drop upload files here to use as resources. Images, Libraries, JSON data... anything you want. You can even edit them anytime, like any other code on CodePen.

Go PRO

Loading ..................

Console