Capture your own elements →Add to Chrome - It's Free

HTML

<div class="demo">
  <form class="form" onsubmit="return false">
    <label class="label" for="email">Email address</label>
    <div class="input-row">
      <input
        class="input"
        id="email"
        type="email"
        placeholder="you@example.com"
        autocomplete="off"
      />
      <button class="btn" type="submit">Subscribe</button>
    </div>
    <p class="hint">No spam. Unsubscribe anytime.</p>
  </form>
</div>

CSS

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: system-ui, -apple-system, sans-serif;
  background: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}
.form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-width: 380px;
}
.label {
  font-size: 13px;
  font-weight: 500;
  color: #374151;
}
.input-row { display: flex; gap: 8px; }
.input {
  flex: 1;
  height: 40px;
  padding: 0 12px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  color: #111827;
  background: #fff;
  transition: border-color 150ms, box-shadow 150ms;
  outline: none;
}
.input::placeholder { color: #9ca3af; }
.input:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}
.btn {
  height: 40px;
  padding: 0 16px;
  background: #3b82f6;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 150ms;
  white-space: nowrap;
}
.btn:hover { background: #2563eb; }
.hint { font-size: 12px; color: #9ca3af; }