Ключевые слова: 3d, alarm, alert, antivirus, attention, background, banner, bell, blue, business, button, caution, clock, computer, danger, dangerous, deadline, design, device, emergency, fire, icon, illustration, instrument, isolated, morning, office, protection, ring, risk, safe, safety, security, sign, signal, siren, sound, symbol, technology, time, timer, warning, watch, webpage, white,