styles.css

@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@200&display=swap");

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
  font-weight: bold;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background-image: linear-gradient(to top left, lightblue, cyan, lightblue);
}

.wrapper {
  width: 420px;
  background-color: rgba(255, 255, 255, 0.7);
  border-radius: 20px;
  padding: 28px 28px 45px;
}

.wrapper header {
  font-size: 28px;
  font-weight: 500;
  font-family: monospace;
  text-align: center;
}

.wrapper .search {
  position: relative;
  margin: 35px 0 18px;
}

.search input {
  height: 53px;
  width: 100%;
  font-size: 16px;
  outline: none;
  padding: 0 42px;
  border: 1px solid #999;
  border-radius: 5px;
}
.search input:focus {
  padding: 0 41px;
  border: 2px solid black;
}

.search input::placeholder {
  color: #b8b8b8;
}
.search :where(i, span) {
  position: absolute;
  top: 50%;
  color: #999;
  transform: translateY(-50%);
}

.search i {
  left: 18px;
  font-size: 16px;
  pointer-events: none;
}
.search input:focus ~ i {
  color: rgb(35, 182, 231);
}
.search span {
  right: 15px;
  font-size: 1;
  cursor: pointer;
  display: none;
}

.search input:valid ~ span {
  display: block;
}

.wrapper .info-text {
  position: relative;
  font-size: 12px;
  color: #9a9a9a;
  top: -15px;
  left: 15px;
}
.wrapper.active .info-text {
  display: none;
}
.info-text span {
  font-weight: bold;
}

.wrapper ul li {
  display: flex;
  margin-bottom: 14px;
  padding-bottom: 17px;
  border-bottom: 1px solid #ccc;
  align-items: center;
  justify-content: space-between;
}

.wrapper ul {
  height: 0;
  opacity: 0;
  overflow: hidden;
  transition: all 0.2s ease;
}

.wrapper.active ul {
  height: fit-content;
  opacity: 1;
}
ul li:last-child {
  margin: 0px;
  padding: 0px;
  border-bottom: 0px;
}
ul .word p {
  font-size: 22px;
  font-weight: bold;
}

ul .word span {
  font-size: 12px;
  color: #6f6e6e;
  font-style: italic;
}

ul .word i {
  cursor: pointer;
  font-size: 15px;
  color: #999;
}

.content li .details {
  padding-left: 10px;
  border-radius: 4px 0 0 4px;
  border-left: 3px solid rgb(35, 182, 231);
}

.content li .details p {
  font-size: 17px;
  font-weight: bolder;
}
.content li .details span {
  font-size: 15px;
  font-weight: 500;
}

.content li .details span {
  display: block;
  max-height: 45px;
  overflow: scroll;
}

.synonyms .details .list {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  text-decoration: underline;
}

.synonyms .details .list span {
  cursor: pointer;
}