:root {
  --gutter: 20px;
}

.app {
  padding: var(--gutter) 0;
  display: grid;
  grid-gap: var(--gutter) 0;
  grid-template-columns: var(--gutter) 1fr var(--gutter);
  align-content: start;
}

.app > * {
  grid-column: 2 / -2;
}

.app > .full {
  grid-column: 1 / -1;
}

.hs {
  display: grid;
  grid-gap: calc(var(--gutter) / 2);
  grid-template-columns: repeat(6, calc(50% - var(--gutter) * 2));
  grid-template-rows: minmax(150px, 1fr);
  
  overflow-x: scroll;
  scroll-snap-type: x proximity;
  padding-bottom: calc(.75 * var(--gutter));
  margin-bottom: calc(-.25 * var(--gutter));
}


/* Demo styles */

html,
body {
  height: 100%;
}

body {
  display: grid;
  place-items: center;
/*  background: #456173; /* /*   background of whole site ??? */
  background: rgb(118, 170, 177);  /* RGB light blue */
}

ul {
  list-style: none;
  padding: 0;
}

h1,
h2,
h3 {
  margin: 0;
}

.app {
 /* width: 375px;
  height: 667px;   */  /* JPC */
     width: 100%;
/*    width: 900px;
  height: 667px;*/  /* JPC */
  background: #DBD0BC;   /*   background of whole site ??? */
/*  overflow-y: scroll;*/  /* JPC */
}

.hs > li,
.item {
  scroll-snap-align: center;
  padding: calc(var(--gutter) / 2 * 1.5);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: #fff;
  border-radius: 8px;
}


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