styles.css

* {
  box-sizing: border-box;
}

html {
  font-family: 'Jost', sans-serif;
}

body {
  margin: 0;
  background-color: #111111;
}

header {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.26);
  padding: 0.5rem;
  background-color: #560088;
  color: white;
  text-align: center;
  margin-bottom: 2rem;
}

section {
  width: 90%;
  max-width: 40rem;
  margin: auto;
}

.healthbar--player,
.healthbar {
  width: 100%;
  height: 30px;
  border: 1px solid #575757;
  margin: 1rem 0;
  background: #3f3f3f;
}

.healthbar--player {
  display: flex;
  flex-direction: row-reverse;
}

.healthbar__value {
  background-color: #00a876;
  width: 100%;
  height: 100%;
}

.healthbar__value--mid {
  background-color: #eba000;
  width: 100%;
  height: 100%;
}

.healthbar__value--low {
  background-color: #b60000;
  width: 100%;
  height: 100%;
}

.container {
  color: #ffffff;
  background-color: #1d1d1d;
  text-align: center;
  padding: 0.5rem 3em;
  margin: 1rem auto;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.26);
  border-radius: 12px;
}

#monster h2 {
  margin: 0.25rem;
}

#player h2 {
  margin: 0.25rem;
}

.monster__card {
  text-align: left
}
.player__card {
  text-align: right
}

.monster__card,
.player__card {

}

#controls {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  max-width: 24rem;
}

button {
  font: inherit;
  border: 1px solid #007888;
  background-color: #007888;
  color: white;
  padding: 1rem 2rem;
  border-radius: 12px;
  margin: 1rem;
  width: 9rem;
  cursor: pointer;
  box-shadow: 1px 1px 4px rgba(0, 0, 0, 0.26);
}

button:focus {
  outline: none;
}

button:hover,
button:active {
  background-color: #6ea1be;
  border-color: #6ea1be;
  box-shadow: 1px 1px 8px rgba(0, 0, 0, 0.26);
}

button:disabled {
  background-color: #ccc;
  border-color: #ccc;
  box-shadow: none;
  color: #3f3f3f;
  cursor: not-allowed;
}

#log ul {
  text-align: right;
  list-style: none;
  margin: 0;
  padding: 0;
}

#log li {
  margin: 0.5rem 0;
}

.log--player {
  color: #99daff;
}

.log--monster {
  color: #dab900;
}

.log--damage {
  color: rgb(255, 77, 77);
}

.log--heal {
  color: rgb(63, 168, 63);
}