55.css

html {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: lightgray;
  font-family: sans-serif, "Times New Roman", Times, serif;
  color: blue;
  text-align: center;
}

body {
  max-width: 700px;
}

h1,
h3,
H4,
h6 {
  text-align: center;
  padding: 1px;
  margin: 3px;
}

h5 {
  text-align: justify;
  text-justify: inter-word;
  font-weight: 800;
  text-shadow: 1px 1px 1px black;
  padding: 1px;
  margin: 3px;
}

.wordRow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  grid-gap: 5px;
  margin: 0.5rem 0;
}

.letter {
  margin: auto;
  width: 53px;
  height: 53px;
  outline-offset: -2px;
  outline: 3px solid blue;
  padding: 1rem 1.25rem;
  font-size: 53px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  font-size: 2rem;
  line-height: 2rem;
  font-weight: bold;
  vertical-align: middle;
  box-sizing: border-box;
  font-weight: 800;
  color: black;
  text-transform: uppercase;
  user-select: none;
  transition: 0.75s;
}

.letter:before {
  content: "A";
  color: transparent;
  opacity: 0;
  user-select: none;
  pointer-events: none;
  font-size: 0;
}

#keyboard {
  margin: 0 8px;
  user-select: none;
}

.row {
  display: flex;
  width: 100%;
  margin: 0 auto 8px;
  touch-action: manipulation;
}

button {
  font-family: inherit;
  font-weight: 800;
  font-size: 1.2rem;
  border: 0;
  padding: 0;
  margin: 0 7px 0 0;
  height: 27px;
  border-radius: 3px;
  cursor: pointer;
  user-select: none;
  background-color: blue;
  color: white;
  text-shadow: 1px 1px 1px black;
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  text-transform: uppercase;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0.3);
}

.big-key {
  flex: 1.5;
  font-size: 12px;
  font-weight: 300;
}

.match {
  background: springgreen !important;
  outline: 3px solid blue;
}

.present {
  background: yellow;
  outline: 3px solid blue;
}

.absent {
  background: red;
  outline: 3px solid blue;
}

img {
  max-width: 351px;
  height: 215px;
  margin: auto;
  border-color: 10px blue;
}

#showHint {
  width: 8rem;
  height: 1.2rem;
  font-size: 1rem;
  font-weight: 500;
  color: white;
  background-color: blue;
  margin: 3px auto;
  border-radius: 3px;
}

#hintPhrase {
  color: black;
  width: 12rem;
  height: 1.5rem;
  margin: 5px auto;
  background-color: yellow;
}