纯css实现的loading效果。
<!DOCTYPE html> <html> <head> <title>SpinKit Examples</title> <style type="text/css"> :root { --sk-size: 40px; --sk-color: #333; } .sk-circle { width: var(--sk-size); height: var(--sk-size); position: relative; } .sk-circle-dot { width: 100%; height: 100%; position: absolute; left: 0; top: 0; } .sk-circle-dot:before { content: ''; display: block; width: 15%; height: 15%; background-color: var(--sk-color); border-radius: 100%; animation: sk-circle 1.2s infinite ease-in-out both; } .sk-circle-dot:nth-child(1) { transform: rotate(30deg); } .sk-circle-dot:nth-child(2) { transform: rotate(60deg); } .sk-circle-dot:nth-child(3) { transform: rotate(90deg); } .sk-circle-dot:nth-child(4) { transform: rotate(120deg); } .sk-circle-dot:nth-child(5) { transform: rotate(150deg); } .sk-circle-dot:nth-child(6) { transform: rotate(180deg); } .sk-circle-dot:nth-child(7) { transform: rotate(210deg); } .sk-circle-dot:nth-child(8) { transform: rotate(240deg); } .sk-circle-dot:nth-child(9) { transform: rotate(270deg); } .sk-circle-dot:nth-child(10) { transform: rotate(300deg); } .sk-circle-dot:nth-child(11) { transform: rotate(330deg); } .sk-circle-dot:nth-child(1):before { animation-delay: -1.1s; } .sk-circle-dot:nth-child(2):before { animation-delay: -1s; } .sk-circle-dot:nth-child(3):before { animation-delay: -0.9s; } .sk-circle-dot:nth-child(4):before { animation-delay: -0.8s; } .sk-circle-dot:nth-child(5):before { animation-delay: -0.7s; } .sk-circle-dot:nth-child(6):before { animation-delay: -0.6s; } .sk-circle-dot:nth-child(7):before { animation-delay: -0.5s; } .sk-circle-dot:nth-child(8):before { animation-delay: -0.4s; } .sk-circle-dot:nth-child(9):before { animation-delay: -0.3s; } .sk-circle-dot:nth-child(10):before { animation-delay: -0.2s; } .sk-circle-dot:nth-child(11):before { animation-delay: -0.1s; } @keyframes sk-circle { 0%, 80%, 100% { transform: scale(0); } 40% { transform: scale(1); } } </style> </head> <body> <div class="sk-circle"> <div class="sk-circle-dot"></div> <div class="sk-circle-dot"></div> <div class="sk-circle-dot"></div> <div class="sk-circle-dot"></div> <div class="sk-circle-dot"></div> <div class="sk-circle-dot"></div> <div class="sk-circle-dot"></div> <div class="sk-circle-dot"></div> <div class="sk-circle-dot"></div> <div class="sk-circle-dot"></div> <div class="sk-circle-dot"></div> <div class="sk-circle-dot"></div> </div> </body> </html>