*:hover,
*:active,
*:focus {
  -webkit-tap-highlight-color: transparent;
}

html, body, ul {
  overflow: hidden;
}

ul {
  height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr 1fr 1fr 1fr;
  grid-column-gap: 1px;
  grid-row-gap: 1px;
  font-size: 3vw;
  line-height: 100%;
  text-align: center;
  text-transform: uppercase;
  color: white;
  font-weight: 700;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  cursor: pointer;
}

li {
  transition: font-size .2s;
  display: grid;
  align-items: center;
}
li:active {
  font-size: 1.5em;
}
li:focus {
  box-shadow: 0px 3px 3px rgba(0, 0, 0, 0.5);
}

li:nth-of-type(1) {
  background-color: #bbe467;
}

li:nth-of-type(2) {
  background-color: #67e4bb;
}

li:nth-of-type(3) {
  background-color: #6767e4;
}

li:nth-of-type(4) {
  background-color: #e467bb;
}

li:nth-of-type(5) {
  background-color: #e4bb67;
}

li:nth-of-type(6) {
  background-color: #67e467;
}

li:nth-of-type(7) {
  background-color: #67bbe4;
}

li:nth-of-type(8) {
  background-color: #bb67e4;
}

li:nth-of-type(9) {
  background-color: #e46767;
}

li:nth-of-type(10) {
  background-color: #bbe467;
}

li:nth-of-type(11) {
  background-color: #67e4bb;
}

li:nth-of-type(12) {
  background-color: #6767e4;
}

li:nth-of-type(13) {
  background-color: #e467bb;
}

li:nth-of-type(14) {
  background-color: #e4bb67;
}

li:nth-of-type(15) {
  background-color: #67e467;
}

li:nth-of-type(16) {
  background-color: #67bbe4;
}

li:nth-of-type(17) {
  background-color: #bb67e4;
}

li:nth-of-type(18) {
  background-color: #e46767;
}

li:nth-of-type(19) {
  background-color: #bbe467;
}

li:nth-of-type(20) {
  background-color: #67e4bb;
}

li:nth-of-type(21) {
  background-color: #6767e4;
}

li:nth-of-type(22) {
  background-color: #e467bb;
}

li:nth-of-type(23) {
  background-color: #e4bb67;
}

li:nth-of-type(24) {
  background-color: #67e467;
}

li:nth-of-type(25) {
  background-color: #67bbe4;
}

li:nth-of-type(26) {
  background-color: #bb67e4;
}