feat(nofxi): redesign Web UI - professional trading platform style

- Dark trading terminal aesthetic (deep black + green/purple accents)
- Gradient logo, nav pills, status badge
- Sidebar: Quick Trade grid, Portfolio list, Monitor, Strategy
- Chat: card bubbles with avatars, timestamps, fade-in animation
- Typing indicator with bouncing dots
- Glowing input focus, keyboard hints
- Inter + JetBrains Mono fonts
- Mobile responsive
This commit is contained in:
shinchan-zhai
2026-03-22 22:12:43 +08:00
parent 753989ee99
commit c82fa93d6d

View File

@@ -4,332 +4,616 @@
<meta charset="UTF-8"> <meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>NOFXi — AI Trading Agent</title> <title>NOFXi — AI Trading Agent</title>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap" rel="stylesheet">
<style> <style>
* { margin: 0; padding: 0; box-sizing: border-box; } * { margin: 0; padding: 0; box-sizing: border-box; }
:root { :root {
--bg: #0a0a0f; --bg: #09090b;
--surface: #12121a; --bg2: #0f0f14;
--border: #1e1e2e; --surface: #16161d;
--text: #e0e0e0; --surface2: #1c1c27;
--text-dim: #888; --border: #252530;
--accent: #00d4aa; --border2: #2e2e3a;
--accent2: #7c3aed; --text: #f0f0f5;
--text2: #a0a0b0;
--text3: #666680;
--accent: #00e5a0;
--accent-dim: rgba(0,229,160,0.1);
--purple: #8b5cf6;
--purple-dim: rgba(139,92,246,0.1);
--blue: #3b82f6;
--red: #ef4444; --red: #ef4444;
--green: #22c55e; --green: #22c55e;
--yellow: #eab308; --orange: #f59e0b;
--radius: 12px;
--radius-sm: 8px;
--shadow: 0 4px 24px rgba(0,0,0,0.4);
} }
body { body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
background: var(--bg); background: var(--bg);
color: var(--text); color: var(--text);
height: 100vh; height: 100vh;
display: flex; display: flex;
flex-direction: column; flex-direction: column;
overflow: hidden;
} }
/* Header */ /* === Header === */
.header { .header {
display: flex; display: flex;
align-items: center; align-items: center;
justify-content: space-between; justify-content: space-between;
padding: 16px 24px; padding: 12px 24px;
background: var(--bg2);
border-bottom: 1px solid var(--border); border-bottom: 1px solid var(--border);
background: var(--surface); backdrop-filter: blur(12px);
z-index: 10;
} }
.header h1 { .header-left {
font-size: 20px; display: flex;
font-weight: 700; align-items: center;
background: linear-gradient(135deg, var(--accent), var(--accent2)); gap: 16px;
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
} }
.status { .logo {
font-size: 22px;
font-weight: 800;
letter-spacing: -0.5px;
display: flex; display: flex;
align-items: center; align-items: center;
gap: 8px; gap: 8px;
}
.logo-icon {
width: 32px; height: 32px;
background: linear-gradient(135deg, var(--accent), var(--purple));
border-radius: 8px;
display: flex;
align-items: center;
justify-content: center;
font-size: 16px;
}
.logo span {
background: linear-gradient(135deg, var(--accent), var(--purple));
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
}
.nav-pills {
display: flex;
gap: 4px;
background: var(--surface);
border-radius: var(--radius);
padding: 3px;
}
.nav-pill {
padding: 6px 16px;
border-radius: var(--radius-sm);
font-size: 13px; font-size: 13px;
color: var(--text-dim); font-weight: 500;
color: var(--text3);
cursor: pointer;
transition: all 0.2s;
border: none;
background: none;
}
.nav-pill:hover { color: var(--text2); }
.nav-pill.active {
background: var(--surface2);
color: var(--text);
box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}
.header-right {
display: flex;
align-items: center;
gap: 12px;
}
.status-badge {
display: flex;
align-items: center;
gap: 6px;
padding: 5px 12px;
background: rgba(34,197,94,0.1);
border: 1px solid rgba(34,197,94,0.2);
border-radius: 20px;
font-size: 12px;
font-weight: 500;
color: var(--green);
}
.status-badge.offline {
background: rgba(239,68,68,0.1);
border-color: rgba(239,68,68,0.2);
color: var(--red);
} }
.status-dot { .status-dot {
width: 8px; width: 6px; height: 6px;
height: 8px;
border-radius: 50%; border-radius: 50%;
background: var(--green); background: currentColor;
animation: pulse 2s infinite;
}
.status-dot.offline { background: var(--red); animation: none; }
@keyframes pulse {
0%, 100% { opacity: 1; }
50% { opacity: 0.5; }
} }
/* Main area */ /* === Main Layout === */
.main { .main {
flex: 1; flex: 1;
display: flex; display: flex;
overflow: hidden; overflow: hidden;
} }
/* Sidebar */ /* === Sidebar === */
.sidebar { .sidebar {
width: 260px; width: 280px;
background: var(--bg2);
border-right: 1px solid var(--border); border-right: 1px solid var(--border);
background: var(--surface); display: flex;
padding: 16px; flex-direction: column;
overflow-y: auto; overflow-y: auto;
} }
.sidebar h3 { .sidebar-section {
font-size: 12px; padding: 16px;
text-transform: uppercase; border-bottom: 1px solid var(--border);
color: var(--text-dim);
margin-bottom: 12px;
letter-spacing: 1px;
} }
.quick-btn { .sidebar-title {
display: block; font-size: 11px;
width: 100%; font-weight: 600;
padding: 10px 12px; text-transform: uppercase;
margin-bottom: 6px; letter-spacing: 1.2px;
background: var(--bg); color: var(--text3);
margin-bottom: 10px;
}
.action-grid {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 6px;
}
.action-btn {
display: flex;
flex-direction: column;
align-items: center;
gap: 4px;
padding: 12px 8px;
background: var(--surface);
border: 1px solid var(--border); border: 1px solid var(--border);
border-radius: 8px; border-radius: var(--radius-sm);
color: var(--text2);
font-size: 11px;
font-weight: 500;
cursor: pointer;
transition: all 0.15s;
}
.action-btn:hover {
background: var(--surface2);
border-color: var(--border2);
color: var(--text); color: var(--text);
transform: translateY(-1px);
}
.action-btn .emoji { font-size: 20px; }
.action-list {
display: flex;
flex-direction: column;
gap: 2px;
}
.action-item {
display: flex;
align-items: center;
gap: 10px;
padding: 8px 10px;
border-radius: var(--radius-sm);
color: var(--text2);
font-size: 13px; font-size: 13px;
cursor: pointer; cursor: pointer;
transition: all 0.15s;
border: none;
background: none;
width: 100%;
text-align: left; text-align: left;
transition: all 0.2s;
} }
.quick-btn:hover { .action-item:hover {
border-color: var(--accent); background: var(--surface);
background: rgba(0, 212, 170, 0.05); color: var(--text);
} }
.quick-btn .icon { margin-right: 8px; } .action-item .icon {
width: 28px; height: 28px;
border-radius: 6px;
display: flex;
align-items: center;
justify-content: center;
font-size: 14px;
flex-shrink: 0;
}
.action-item .icon.green { background: rgba(34,197,94,0.1); }
.action-item .icon.blue { background: rgba(59,130,246,0.1); }
.action-item .icon.purple { background: rgba(139,92,246,0.1); }
.action-item .icon.orange { background: rgba(245,158,11,0.1); }
/* Chat area */ /* === Chat === */
.chat-container { .chat-area {
flex: 1; flex: 1;
display: flex; display: flex;
flex-direction: column; flex-direction: column;
background: var(--bg);
} }
.messages { .messages {
flex: 1; flex: 1;
overflow-y: auto; overflow-y: auto;
padding: 24px; padding: 24px 20px;
scroll-behavior: smooth;
} }
.message { .messages::-webkit-scrollbar { width: 4px; }
margin-bottom: 16px; .messages::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.msg {
display: flex; display: flex;
gap: 12px; gap: 12px;
margin-bottom: 20px;
animation: fadeIn 0.3s ease;
} }
.message.user { justify-content: flex-end; } .msg.user { flex-direction: row-reverse; }
.message .avatar { @keyframes fadeIn {
width: 32px; from { opacity: 0; transform: translateY(8px); }
height: 32px; to { opacity: 1; transform: translateY(0); }
border-radius: 50%; }
.msg-avatar {
width: 36px; height: 36px;
border-radius: 10px;
display: flex; display: flex;
align-items: center; align-items: center;
justify-content: center; justify-content: center;
font-size: 16px; font-size: 18px;
flex-shrink: 0; flex-shrink: 0;
} }
.message.assistant .avatar { background: var(--accent); color: #000; } .msg.bot .msg-avatar {
.message.user .avatar { background: var(--accent2); color: #fff; } background: linear-gradient(135deg, var(--accent-dim), var(--purple-dim));
.message .bubble { border: 1px solid var(--border);
max-width: 70%; }
padding: 12px 16px; .msg.user .msg-avatar {
background: var(--purple-dim);
border: 1px solid rgba(139,92,246,0.2);
}
.msg-body { max-width: 680px; }
.msg-name {
font-size: 12px;
font-weight: 600;
margin-bottom: 4px;
color: var(--text3);
}
.msg.user .msg-name { text-align: right; }
.msg-bubble {
padding: 14px 18px;
border-radius: 16px; border-radius: 16px;
font-size: 14px; font-size: 14px;
line-height: 1.6; line-height: 1.7;
white-space: pre-wrap; white-space: pre-wrap;
word-break: break-word;
} }
.message.assistant .bubble { .msg.bot .msg-bubble {
background: var(--surface); background: var(--surface);
border: 1px solid var(--border); border: 1px solid var(--border);
border-bottom-left-radius: 4px; border-top-left-radius: 4px;
color: var(--text);
} }
.message.user .bubble { .msg.user .msg-bubble {
background: var(--accent2); background: linear-gradient(135deg, var(--purple), #6d28d9);
border-top-right-radius: 4px;
color: #fff; color: #fff;
border-bottom-right-radius: 4px;
} }
.typing { .msg-time {
color: var(--text-dim); font-size: 11px;
color: var(--text3);
margin-top: 4px;
}
.msg.user .msg-time { text-align: right; }
/* Typing indicator */
.typing-indicator {
display: none;
padding: 0 24px 12px;
color: var(--text3);
font-size: 13px; font-size: 13px;
padding: 8px 24px; align-items: center;
gap: 8px;
} }
.typing::after { .typing-indicator.active { display: flex; }
content: '...'; .typing-dots {
animation: dots 1.5s infinite; display: flex;
gap: 3px;
} }
@keyframes dots { .typing-dots span {
0%, 20% { content: '.'; } width: 5px; height: 5px;
40% { content: '..'; } background: var(--accent);
60%, 100% { content: '...'; } border-radius: 50%;
animation: bounce 1.4s infinite;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes bounce {
0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
30% { transform: translateY(-6px); opacity: 1; }
} }
/* Input */ /* === Input === */
.input-area { .input-bar {
padding: 16px 24px; padding: 16px 20px 20px;
background: var(--bg2);
border-top: 1px solid var(--border); border-top: 1px solid var(--border);
background: var(--surface);
} }
.input-wrap { .input-container {
display: flex; display: flex;
gap: 12px; align-items: center;
max-width: 800px; gap: 10px;
background: var(--surface);
border: 1px solid var(--border);
border-radius: 16px;
padding: 4px 4px 4px 18px;
transition: border-color 0.2s;
max-width: 900px;
margin: 0 auto; margin: 0 auto;
} }
.input-wrap input { .input-container:focus-within {
border-color: var(--accent);
box-shadow: 0 0 0 3px var(--accent-dim);
}
.input-container input {
flex: 1; flex: 1;
padding: 12px 16px; background: none;
background: var(--bg); border: none;
border: 1px solid var(--border);
border-radius: 12px;
color: var(--text); color: var(--text);
font-size: 14px; font-size: 14px;
font-family: inherit;
outline: none; outline: none;
transition: border-color 0.2s; padding: 10px 0;
} }
.input-wrap input:focus { border-color: var(--accent); } .input-container input::placeholder { color: var(--text3); }
.input-wrap input::placeholder { color: var(--text-dim); } .send-btn {
.input-wrap button { width: 40px; height: 40px;
padding: 12px 24px;
background: linear-gradient(135deg, var(--accent), var(--accent2));
border: none;
border-radius: 12px; border-radius: 12px;
color: #fff; border: none;
font-size: 14px; background: linear-gradient(135deg, var(--accent), #00c896);
font-weight: 600; color: #000;
font-size: 18px;
cursor: pointer; cursor: pointer;
transition: opacity 0.2s; display: flex;
align-items: center;
justify-content: center;
transition: all 0.15s;
flex-shrink: 0;
}
.send-btn:hover { transform: scale(1.05); box-shadow: 0 2px 12px rgba(0,229,160,0.3); }
.send-btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
.input-hint {
font-size: 11px;
color: var(--text3);
text-align: center;
margin-top: 8px;
}
.input-hint kbd {
background: var(--surface);
padding: 1px 5px;
border-radius: 4px;
border: 1px solid var(--border);
font-family: 'JetBrains Mono', monospace;
font-size: 10px;
} }
.input-wrap button:hover { opacity: 0.9; }
.input-wrap button:disabled { opacity: 0.5; cursor: not-allowed; }
/* Mobile */ /* === Mobile === */
@media (max-width: 768px) { @media (max-width: 768px) {
.sidebar { display: none; } .sidebar { display: none; }
.message .bubble { max-width: 85%; } .nav-pills { display: none; }
.header { padding: 10px 16px; }
.messages { padding: 16px 12px; }
.input-bar { padding: 10px 12px 14px; }
.msg-body { max-width: 90%; }
} }
</style> </style>
</head> </head>
<body> <body>
<div class="header">
<h1>🤖 NOFXi</h1> <div class="header">
<div class="status"> <div class="header-left">
<div class="status-dot" id="statusDot"></div> <div class="logo">
<div class="logo-icon"></div>
<span>NOFXi</span>
</div>
<div class="nav-pills">
<button class="nav-pill active">Chat</button>
<button class="nav-pill" onclick="send('/positions')">Positions</button>
<button class="nav-pill" onclick="send('/status')">Status</button>
</div>
</div>
<div class="header-right">
<div class="status-badge" id="statusBadge">
<div class="status-dot"></div>
<span id="statusText">Connecting...</span> <span id="statusText">Connecting...</span>
</div> </div>
</div> </div>
</div>
<div class="main"> <div class="main">
<div class="sidebar"> <div class="sidebar">
<h3>Quick Actions</h3> <div class="sidebar-section">
<button class="quick-btn" onclick="send('/help')"><span class="icon">📋</span>Help</button> <div class="sidebar-title">Quick Trade</div>
<button class="quick-btn" onclick="send('/status')"><span class="icon">📊</span>Status</button> <div class="action-grid">
<button class="quick-btn" onclick="send('/positions')"><span class="icon">💼</span>Positions</button> <button class="action-btn" onclick="send('/analyze BTC')">
<button class="quick-btn" onclick="send('/balance')"><span class="icon">💰</span>Balance</button> <span class="emoji"></span>BTC Analysis
</button>
<h3 style="margin-top:20px">Analysis</h3> <button class="action-btn" onclick="send('/analyze ETH')">
<button class="quick-btn" onclick="send('/analyze BTC')"><span class="icon">🔍</span>Analyze BTC</button> <span class="emoji">Ξ</span>ETH Analysis
<button class="quick-btn" onclick="send('/analyze ETH')"><span class="icon">🔍</span>Analyze ETH</button> </button>
<button class="quick-btn" onclick="send('/analyze SOL')"><span class="icon">🔍</span>Analyze SOL</button> <button class="action-btn" onclick="send('/analyze SOL')">
<span class="emoji"></span>SOL Analysis
<h3 style="margin-top:20px">Monitor</h3> </button>
<button class="quick-btn" onclick="send('/watch BTCUSDT')"><span class="icon">👁️</span>Watch BTC</button> <button class="action-btn" onclick="send('/price BTCUSDT')">
<button class="quick-btn" onclick="send('/watch ETHUSDT')"><span class="icon">👁️</span>Watch ETH</button> <span class="emoji">💲</span>BTC Price
<button class="quick-btn" onclick="send('/price BTCUSDT')"><span class="icon">💲</span>BTC Price</button> </button>
</div>
</div> </div>
<div class="chat-container"> <div class="sidebar-section">
<div class="messages" id="messages"> <div class="sidebar-title">Portfolio</div>
<div class="message assistant"> <div class="action-list">
<div class="avatar">🤖</div> <button class="action-item" onclick="send('/positions')">
<div class="bubble">Hey! I'm NOFXi, your AI trading agent. 🚀 <div class="icon green">💼</div>
<span>Open Positions</span>
Ask me anything about markets, or use quick actions on the left. </button>
<button class="action-item" onclick="send('/balance')">
Type /help to see all commands.</div> <div class="icon blue">💰</div>
</div> <span>Account Balance</span>
</button>
<button class="action-item" onclick="send('/pnl')">
<div class="icon purple">📊</div>
<span>P/L History</span>
</button>
</div> </div>
<div class="typing" id="typing" style="display:none">NOFXi is thinking</div> </div>
<div class="input-area">
<div class="input-wrap"> <div class="sidebar-section">
<input type="text" id="input" placeholder="Ask NOFXi anything... (e.g. 分析BTC, /buy ETH 0.1)" <div class="sidebar-title">Monitor</div>
onkeydown="if(event.key==='Enter')send()"> <div class="action-list">
<button id="sendBtn" onclick="send()">Send</button> <button class="action-item" onclick="send('/watch BTCUSDT')">
</div> <div class="icon orange">👁️</div>
<span>Watch BTC</span>
</button>
<button class="action-item" onclick="send('/watch ETHUSDT')">
<div class="icon orange">👁️</div>
<span>Watch ETH</span>
</button>
<button class="action-item" onclick="send('/watch')">
<div class="icon blue">📋</div>
<span>Watchlist</span>
</button>
</div>
</div>
<div class="sidebar-section">
<div class="sidebar-title">Strategy</div>
<div class="action-list">
<button class="action-item" onclick="send('/strategy list')">
<div class="icon purple">🤖</div>
<span>Active Strategies</span>
</button>
<button class="action-item" onclick="send('/strategy start BTC 1h')">
<div class="icon green">🚀</div>
<span>Start BTC Strategy</span>
</button>
</div> </div>
</div> </div>
</div> </div>
<script> <div class="chat-area">
const API = window.location.origin; <div class="messages" id="messages">
const messagesEl = document.getElementById('messages'); <div class="msg bot">
const inputEl = document.getElementById('input'); <div class="msg-avatar"></div>
const typingEl = document.getElementById('typing'); <div class="msg-body">
const sendBtn = document.getElementById('sendBtn'); <div class="msg-name">NOFXi</div>
const statusDot = document.getElementById('statusDot'); <div class="msg-bubble">Hey! 👋 I'm NOFXi, your AI trading agent.
const statusText = document.getElementById('statusText');
// Check health I can analyze markets, monitor prices, manage trades, and run automated strategies. Just ask me anything — in English or 中文.
async function checkHealth() {
try {
const r = await fetch(API + '/health');
const d = await r.json();
statusDot.classList.remove('offline');
statusText.textContent = 'Online · ' + d.agent;
} catch {
statusDot.classList.add('offline');
statusText.textContent = 'Offline';
}
}
checkHealth();
setInterval(checkHealth, 30000);
function addMessage(role, text) { Try: "分析一下BTC" or use the quick actions on the left.</div>
const div = document.createElement('div'); <div class="msg-time">Just now</div>
div.className = 'message ' + role; </div>
const avatar = role === 'user' ? '👤' : '🤖'; </div>
div.innerHTML = `<div class="avatar">${avatar}</div><div class="bubble">${escapeHtml(text)}</div>`; </div>
if (role === 'user') {
div.innerHTML = `<div class="bubble">${escapeHtml(text)}</div><div class="avatar">${avatar}</div>`;
}
messagesEl.appendChild(div);
messagesEl.scrollTop = messagesEl.scrollHeight;
}
function escapeHtml(t) { <div class="typing-indicator" id="typing">
return t.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;'); <div class="typing-dots"><span></span><span></span><span></span></div>
} NOFXi is thinking...
</div>
async function send(text) { <div class="input-bar">
if (!text) { <div class="input-container">
text = inputEl.value.trim(); <input type="text" id="input" placeholder="Ask NOFXi anything..."
if (!text) return; onkeydown="if(event.key==='Enter'&&!event.shiftKey){event.preventDefault();send()}"
inputEl.value = ''; autocomplete="off">
} <button class="send-btn" id="sendBtn" onclick="send()"></button>
</div>
<div class="input-hint">
<kbd>Enter</kbd> to send · Try: /help, /analyze BTC, /buy ETH 0.1 2x
</div>
</div>
</div>
</div>
addMessage('user', text); <script>
typingEl.style.display = 'block'; const API = window.location.origin;
sendBtn.disabled = true; const messagesEl = document.getElementById('messages');
const inputEl = document.getElementById('input');
const typingEl = document.getElementById('typing');
const sendBtn = document.getElementById('sendBtn');
const statusBadge = document.getElementById('statusBadge');
const statusTextEl = document.getElementById('statusText');
try { async function checkHealth() {
const r = await fetch(API + '/api/chat', { try {
method: 'POST', const r = await fetch(API + '/health');
headers: { 'Content-Type': 'application/json' }, const d = await r.json();
body: JSON.stringify({ message: text, user_id: 1 }) statusBadge.classList.remove('offline');
}); statusTextEl.textContent = 'Online';
const d = await r.json(); } catch {
addMessage('assistant', d.response || d.error || 'No response'); statusBadge.classList.add('offline');
} catch (e) { statusTextEl.textContent = 'Offline';
addMessage('assistant', '⚠️ Connection error: ' + e.message); }
} }
checkHealth();
setInterval(checkHealth, 30000);
typingEl.style.display = 'none'; function timeNow() {
sendBtn.disabled = false; return new Date().toLocaleTimeString('zh-CN', { hour: '2-digit', minute: '2-digit' });
inputEl.focus(); }
}
</script> function addMsg(role, text) {
const div = document.createElement('div');
const isUser = role === 'user';
div.className = 'msg ' + (isUser ? 'user' : 'bot');
const avatar = isUser ? '👤' : '⚡';
const name = isUser ? 'You' : 'NOFXi';
div.innerHTML = `
<div class="msg-avatar">${avatar}</div>
<div class="msg-body">
<div class="msg-name">${name}</div>
<div class="msg-bubble">${escHtml(text)}</div>
<div class="msg-time">${timeNow()}</div>
</div>`;
messagesEl.appendChild(div);
messagesEl.scrollTop = messagesEl.scrollHeight;
}
function escHtml(t) {
const d = document.createElement('div');
d.textContent = t;
return d.innerHTML;
}
async function send(text) {
if (!text) {
text = inputEl.value.trim();
if (!text) return;
inputEl.value = '';
}
addMsg('user', text);
typingEl.classList.add('active');
sendBtn.disabled = true;
inputEl.focus();
try {
const r = await fetch(API + '/api/chat', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ message: text, user_id: 1 })
});
const d = await r.json();
addMsg('bot', d.response || d.error || 'No response');
} catch (e) {
addMsg('bot', '⚠️ Connection error: ' + e.message);
}
typingEl.classList.remove('active');
sendBtn.disabled = false;
inputEl.focus();
}
inputEl.focus();
</script>
</body> </body>
</html> </html>