Chat Bubble

代码

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Inter, system-ui, sans-serif;
  background: #050910;
  color: #f2f6ff;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.demo {
  width: 100%;
  max-width: 480px;
}
.demo-title {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 0.375rem;
}
.demo-sub {
  color: #475569;
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

/* ── Chat window ── */
.chat-window {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1.25rem;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* ── Date separator ── */
.chat-separator {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0.25rem 0;
}
.chat-separator::before,
.chat-separator::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(255, 255, 255, 0.07);
}
.chat-separator span {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #475569;
  white-space: nowrap;
}

/* ── Message row ── */
.chat-row {
  display: flex;
  gap: 0.625rem;
  align-items: flex-end;
}

.chat-row--sent {
  flex-direction: row-reverse;
}

.chat-row--grouped {
  margin-top: -0.375rem;
}

/* ── Avatar ── */
.chat-avatar {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: #38bdf8;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  text-transform: uppercase;
}

.chat-avatar-spacer {
  width: 2rem;
  flex-shrink: 0;
}

/* ── Message group ── */
.chat-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  max-width: 75%;
}

.chat-row--sent .chat-group {
  align-items: flex-end;
}

.chat-sender-name {
  font-size: 0.7rem;
  font-weight: 600;
  color: #475569;
  padding-left: 0.75rem;
}

/* ── Bubble ── */
.chat-bubble {
  padding: 0.625rem 0.875rem;
  border-radius: 1.125rem;
  font-size: 0.875rem;
  line-height: 1.55;
  word-break: break-word;
}

.chat-bubble--received {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #cbd5e1;
  border-bottom-left-radius: 0.375rem;
}

.chat-bubble--sent {
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: #e0f2fe;
  border-bottom-right-radius: 0.375rem;
}

/* ── Timestamp & status ── */
.chat-time {
  font-size: 0.68rem;
  color: #334155;
  padding: 0 0.25rem;
}

.chat-meta {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  justify-content: flex-end;
}

.chat-status {
  display: flex;
  align-items: center;
  color: #334155;
}

.chat-status--delivered {
  color: #475569;
}

.chat-status--read {
  color: #38bdf8;
}

<!doctype html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Chat Bubble</title>
  <link rel="stylesheet" href="style.css" />
</head>
<body>
  <div class="demo">
    <h1 class="demo-title">Chat Bubble</h1>
    <p class="demo-sub">Sender/receiver variants with status indicators and grouping.</p>

    <div class="chat-window">

      <!-- Date separator -->
      <div class="chat-separator" role="separator" aria-label="Today">
        <span>Today</span>
      </div>

      <!-- Received message -->
      <div class="chat-row chat-row--received" aria-label="Message from Alex">
        <div class="chat-avatar" aria-hidden="true">A</div>
        <div class="chat-group">
          <span class="chat-sender-name">Alex</span>
          <div class="chat-bubble chat-bubble--received">
            Hey! Did you get a chance to review the design mockups I sent over?
          </div>
          <span class="chat-time">10:42 AM</span>
        </div>
      </div>

      <!-- Received grouped (no avatar repeat) -->
      <div class="chat-row chat-row--received chat-row--grouped" aria-label="Message from Alex">
        <div class="chat-avatar-spacer" aria-hidden="true"></div>
        <div class="chat-group">
          <div class="chat-bubble chat-bubble--received">
            I also added some notes in the Figma file for context.
          </div>
          <span class="chat-time">10:43 AM</span>
        </div>
      </div>

      <!-- Sent message -->
      <div class="chat-row chat-row--sent" aria-label="Sent message">
        <div class="chat-group">
          <div class="chat-bubble chat-bubble--sent">
            Yes! Just finished going through them. The color palette is perfect.
          </div>
          <div class="chat-meta">
            <span class="chat-time">10:47 AM</span>
            <span class="chat-status chat-status--delivered" aria-label="Delivered">
              <!-- Double check icon -->
              <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
                <path d="M2 12l5 5L17 7"/>
                <path d="M8 12l5 5 7-10" opacity="0.6"/>
              </svg>
            </span>
          </div>
        </div>
      </div>

      <!-- Sent grouped -->
      <div class="chat-row chat-row--sent chat-row--grouped" aria-label="Sent message">
        <div class="chat-group">
          <div class="chat-bubble chat-bubble--sent">
            One thing — can we revisit the spacing on the card component?
          </div>
          <div class="chat-meta">
            <span class="chat-time">10:48 AM</span>
            <span class="chat-status chat-status--sent" aria-label="Sent">
              <!-- Single check icon -->
              <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
                <path d="M5 12l5 5L19 7"/>
              </svg>
            </span>
          </div>
        </div>
      </div>

      <!-- Received -->
      <div class="chat-row chat-row--received" aria-label="Message from Alex">
        <div class="chat-avatar" aria-hidden="true">A</div>
        <div class="chat-group">
          <div class="chat-bubble chat-bubble--received">
            Totally agree. I'll bump the padding from 16px to 24px. Let me push an update now.
          </div>
          <span class="chat-time">10:51 AM</span>
        </div>
      </div>

      <!-- Sent — read status -->
      <div class="chat-row chat-row--sent" aria-label="Sent message">
        <div class="chat-group">
          <div class="chat-bubble chat-bubble--sent">
            👍 Perfect, thanks!
          </div>
          <div class="chat-meta">
            <span class="chat-time">10:52 AM</span>
            <span class="chat-status chat-status--read" aria-label="Read">
              <!-- Blue double check -->
              <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
                <path d="M2 12l5 5L17 7"/>
                <path d="M8 12l5 5 7-10"/>
              </svg>
            </span>
          </div>
        </div>
      </div>

    </div>
  </div>
</body>
</html>

Message bubble components for chat interfaces, supporting both sent (outgoing) and received (incoming) variants with full status indicators.

Variants

Sent — right-aligned bubble with accent background (your messages)
Received — left-aligned bubble with subtle background (others’ messages)
Grouped — consecutive messages from the same sender collapse avatar and reduce spacing

Status indicators

sent · delivered · read

Each status is represented by a small icon below the sent message (single check → double check → blue double check).

Features

Pure CSS with no JavaScript
Avatar with fallback initials
Timestamps on each message
Grouping reduces visual clutter for rapid-fire messages
Accessible with role="log" and aria-label on the chat container