style.css

* {
  box-sizing: border-box;
}

html {
  font-family: sans-serif;
}

body {
  margin: 0;
}

section {
  margin: 2rem auto;
  width: 90%;
  max-width: 40rem;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.26);
  background-color: white;
  padding: 1rem;
}

.form-control {
  margin: 1rem 0;
}

.form-control input,
.form-control textarea,
.form-control label {
  display: block;
  width: 100%;
  font: inherit;
}

.form-control label {
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.form-control input,
.form-control textarea {
  border: 1px solid #ccc;
  padding: 0.25rem;
  border-radius: 4px;
}

.form-control input:focus,
.form-control textarea:focus {
  border-color: #ffbb00;
  outline: none;
  background-color: #fcecc1;
}

button {
  cursor: pointer;
  font: inherit;
  border-radius: 6px;
  border: 1px solid black;
  background-color: #ffbb00;
  color: black;
  padding: 0.5rem 2rem;
  box-shadow: 1px 1px 2px rgba(0, 0, 0, 0.26);
}

button:focus {
  outline: none;
}

button:hover,
button:active {
  background-color: #f8cf60;
}

#user-messages ul {
  padding: 0;
  margin: 0;
  list-style: none;
}

.message-item {
  margin: 0.5rem 0;
  padding: 0.5rem;
  display: flex;
  align-items: center;
}

.message-image {
  width: 50px;
  height: 50px;
  margin-right: 1rem;
}

.message-item img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
}