html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  font-size: 16px;
  line-height: 1.2em;
  font-family: "HelveticaNeue", helvetica, arial, sans-serif;
}

aside {
  margin: 0 auto;
  max-width: 700px;
  background-color: #000;
  color: #fff;
  padding: 2em 0;
}

ul {
  display: flex;
  flex-wrap: wrap;
  margin: 0 2em;
  padding: 0;
}

.intro-box {
  border-left: 1px solid #fff;
  padding: 0 0 1em 1em;
  margin: 0 3em;
}

.sidebar-headline {
  font-family: "HelveticaNeue-CondensedBold";
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 1.125em;
  color: #ee3123;
  margin-top: 0;
}

ul li {
  list-style-type: none;
  width: calc((100% - 7em) / 3);
  color: #e8c31d;
  padding: 0;
}

.item-headline {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 1em;
  color: #fff;
}

.nike {
  border-right: 1px solid #fff;
  border-top: 1px solid #fff;
  margin-left: 1em;
  padding-right: 1em
}

.honma {
  border-bottom: 1px solid #fff;
  padding-left: 1em;
}

.honma h3 {
  margin-top: 0;
  padding-top: 1em;
}

.honma-inner {
  border-right: 1px solid #fff;
  padding-right: 1em;
}

.acushnet {
  border-top: 1px solid #fff;
  border-bottom: 1px solid #fff;
  border-right: 1px solid #fff;
  padding: 0 1em;
}


@media screen and (max-width: 500px) {
  aside {
    max-height: 385px;
    overflow-y: scroll;
  }

  .intro-box {
    padding-left: 1.5em;
  }

  ul li {
    display: block;
    width: 100%;
    margin-right: 0;
  }

  .nike {
    border-bottom: 1px solid #fff;
    padding: 0 1em 1em 1.5em;
  }

  .honma {
    border-bottom: none;
    border-left: 1px solid #fff;
    margin-left: 1em;
    padding-left: 1.5em;
  }

  .honma-inner {
    border-right: none;
    border-bottom: 1px solid #fff;
    padding-bottom: 1em;
  }

  .acushnet {
    border-top: none;
    border-left: 1px solid #fff;
    margin-left: 1em;
    padding-left: 1.5em;
    padding-bottom: 1em;
  }
}