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                <div style="width:360px; margin:50px auto">
  <a href="" class="c-card
     c-card--event       c-card--brand-music">
  <div class="c-card__image">
    <div class="o-image" style="padding-top: 59.7765%;"><img itemprop="image" src="" alt="A picture of four children all in red t-shirts having fun at the Summer Music Camp event." class="o-image__full  isLoaded">
        class="o-image__preview" style="background-image: url(&quot;data:image/gif;base64,R0lGODlhAwADALMAAKw6NMS6tLReVMRORNzW1KRGPMy6vLxqZMROTP///wAAAAAAAAAAAAAAAAAAAAAAACH5BAEAAAkALAAAAAADAAMAAAQHkARzxChgRAA7&quot;);"></div>
  <h3 class="c-card__title h-text--h5">Summer Music Camp</h3>
    <p class="c-card__badge o-badge h-text--badge">HAC Highlight </p>
  <h4 class="c-card__datetime"><time datetime="2019-07-25T10:30:00+01:00" itemprop="startDate">Thu 25</time> – <time datetime="2019-07-31T18:00:00+01:00" itemprop="endDate">Wed 31 Jul</time></h4>
  <p class="c-card__tags h-text--label"><span class="h-accessibility">Categories: </span><span class="c-card__tag c-tag">Music /&nbsp;</span><span class="c-card__tag c-tag">Family</span> </p>
    <span class="c-card__action o-button">
      Info / Book



 * Name         : Card
 * Description  : Cards are the main media object. Lay these out ASAP.
 * State        : green

.c-card {
   //list all possible  elements  of card
  @include grid-template(image, title, badge, tags, summary, datetime, action);
  // layout  
  display: grid;
  grid-gap: $b/2;
  height: 100%; //stretch to row height because our cards don't know they are in a parent grid
  grid-template-rows: min-content min-content 1fr 1fr;
  grid-template-columns: 1fr min-content;
      "image     image"
      "title     title"
      "datetime  datetime"
      "tags      action";
  // styles per element
  &__image { overflow: hidden }
  &__title {
    transition: color 0.4s;

    @include on-event(false, ".c-card") {
      color: color(brand, _500);
      text-decoration: underline;
  &__datetime { @include text--page-date }
  &__tags { margin: auto auto 0 0 }
  &__badge { grid-area: image;}
  &__action {
    margin: auto 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    @include on-event(false, ".c-card") {
      background: color(black, _500);
      color: color(white, _500);
      border-color: color(black, _500);

 * Variants
 * Types of cards: here only event and class

// 1. event
.c-card {
  &--event, &--class {
    padding-bottom: $b/2;
    border-bottom: 5px solid;
  // 2. classes is same as event but the colors are only class colour (green)
  &--class {
    border-color: color(brand-classes, _500);

// colours like panels
@each $color, $color-map in $colors {
  .c-card--#{$color} {
    // color : color(white, _500);
    border-color: map-get($color-map, _500) !important;