<div class="search-container">
  <input type="text" class="main-search" placeholder="Search for users...">
  <ul class="results-list">
    <li>
      <span class="avatar">JD</span>
      <div class="details"><strong>John Doe</strong><span>Developer</span></div>
    </li>
    <li>
      <span class="avatar">JS</span>
      <div class="details"><strong>Jane Smith</strong><span>Designer</span></div>
    </li>
    <li>
      <span class="avatar">MR</span>
      <div class="details"><strong>Mike Ross</strong><span>Manager</span></div>
    </li>
  </ul>
</div>

.search-container {
  font-family: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  position: relative;
  width: 300px;
}
.main-search {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  outline: none;
  font-size: 1rem;
  color: #1f2937;
}
.main-search:focus {
  border-color: #3b82f6;
}
.results-list {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: #fff;
  border: 1px solid #f3f4f6;
  border-radius: 8px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
  list-style: none;
  padding: 0;
  margin-top: 5px;
  display: none;
  overflow: hidden;
}
.main-search:focus + .results-list {
  display: block;
}
.results-list li {
  padding: 12px 15px;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  border-bottom: 1px solid #f9fafb;
}
.results-list li:last-child { border-bottom: none; }
.results-list li:hover {
  background: #f9fafb;
}
.avatar {
  width: 32px;
  height: 32px;
  background: #e5e7eb;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: #4b5563;
}
.details {
  display: flex;
  flex-direction: column;
}
.details strong {
  font-size: 0.9rem;
  color: #1f2937;
}
.details span {
  font-size: 0.8rem;
  color: #9ca3af;
}