HTML
<div class="spinner"></div>
CSS
.spinner { width: 40px; height: 40px; background-color: #333; margin: 100px auto; -webkit-animation: sk-rotateplane 1.2s infinite ease-in-out; animation: sk-rotateplane 1.2s infinite ease-in-out; } @-webkit-keyframes sk-rotateplane { 0% { -webkit-transform: perspective(120px) } 50% { -webkit-transform: perspective(120px) rotateY(180deg) } 100% { -webkit-transform: perspective(120px) rotateY(180deg) rotateX(180deg) } } @keyframes sk-rotateplane { 0% { transform: perspective(120px) rotateX(0deg) rotateY(0deg); -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg) } 50% { transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg); -webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg) } 100% { transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg); -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg); } }
解析:定義一個 div
元素,設置邊長為 40px 背景白色的正方形,然后設置循環(huán)翻轉動畫實現(xiàn)該加載效果動畫
perspective 屬性定義 3D 元素距視圖的距離
HTML
<div class="sk-chase"> <div class="sk-chase-dot"></div> <div class="sk-chase-dot"></div> <div class="sk-chase-dot"></div> <div class="sk-chase-dot"></div> <div class="sk-chase-dot"></div> <div class="sk-chase-dot"></div> </div>
CSS
.sk-chase { width: 40px; height: 40px; position: relative; animation: sk-chase 2.5s infinite linear both; } .sk-chase-dot { width: 100%; height: 100%; position: absolute; left: 0; top: 0; animation: sk-chase-dot 2.0s infinite ease-in-out both; } .sk-chase-dot:before { content: ''; display: block; width: 25%; height: 25%; background-color: #fff; border-radius: 100%; animation: sk-chase-dot-before 2.0s infinite ease-in-out both; } .sk-chase-dot:nth-child(1) { animation-delay: -1.1s; } .sk-chase-dot:nth-child(2) { animation-delay: -1.0s; } .sk-chase-dot:nth-child(3) { animation-delay: -0.9s; } .sk-chase-dot:nth-child(4) { animation-delay: -0.8s; } .sk-chase-dot:nth-child(5) { animation-delay: -0.7s; } .sk-chase-dot:nth-child(6) { animation-delay: -0.6s; } .sk-chase-dot:nth-child(1):before { animation-delay: -1.1s; } .sk-chase-dot:nth-child(2):before { animation-delay: -1.0s; } .sk-chase-dot:nth-child(3):before { animation-delay: -0.9s; } .sk-chase-dot:nth-child(4):before { animation-delay: -0.8s; } .sk-chase-dot:nth-child(5):before { animation-delay: -0.7s; } .sk-chase-dot:nth-child(6):before { animation-delay: -0.6s; } @keyframes sk-chase { 100% { transform: rotate(360deg); } } @keyframes sk-chase-dot { 80%, 100% { transform: rotate(360deg); } } @keyframes sk-chase-dot-before { 50% { transform: scale(0.4); } 100%, 0% { transform: scale(1.0); } }
解析:定義一個父元素 div,內(nèi)含六個白色實心圓點,添加旋轉動畫,通過設置不同的延遲時間來達到依次出現(xiàn)的效果
HTML
<div class="spinner"> <div class="double-bounce1"></div> <div class="double-bounce2"></div> </div>
CSS
.spinner { width: 40px; height: 40px; position: relative; margin: 100px auto; } .double-bounce1, .double-bounce2 { width: 100%; height: 100%; border-radius: 50%; background-color: #333; opacity: 0.6; position: absolute; top: 0; left: 0; -webkit-animation: sk-bounce 2.0s infinite ease-in-out; animation: sk-bounce 2.0s infinite ease-in-out; } .double-bounce2 { -webkit-animation-delay: -1.0s; animation-delay: -1.0s; } @-webkit-keyframes sk-bounce { 0%, 100% { -webkit-transform: scale(0.0) } 50% { -webkit-transform: scale(1.0) } } @keyframes sk-bounce { 0%, 100% { transform: scale(0.0); -webkit-transform: scale(0.0); } 50% { transform: scale(1.0); -webkit-transform: scale(1.0); } }
解析:兩個子元素 div 實現(xiàn)半透明的圓形,設置絕對定位重疊在一起,然后設置相同的動畫通過不同的延遲時間交替放大縮小。
HTML
<div class="spinner"> <div class="rect1"></div> <div class="rect2"></div> <div class="rect3"></div> <div class="rect4"></div> <div class="rect5"></div> </div>
CSS
.spinner { margin: 100px auto; width: 50px; height: 40px; text-align: center; font-size: 10px; } .spinner > div { background-color: #333; height: 100%; width: 6px; display: inline-block; -webkit-animation: sk-stretchdelay 1.2s infinite ease-in-out; animation: sk-stretchdelay 1.2s infinite ease-in-out; } .spinner .rect2 { -webkit-animation-delay: -1.1s; animation-delay: -1.1s; } .spinner .rect3 { -webkit-animation-delay: -1.0s; animation-delay: -1.0s; } .spinner .rect4 { -webkit-animation-delay: -0.9s; animation-delay: -0.9s; } .spinner .rect5 { -webkit-animation-delay: -0.8s; animation-delay: -0.8s; } @-webkit-keyframes sk-stretchdelay { 0%, 40%, 100% { -webkit-transform: scaleY(0.4) } 20% { -webkit-transform: scaleY(1.0) } } @keyframes sk-stretchdelay { 0%, 40%, 100% { transform: scaleY(0.4); -webkit-transform: scaleY(0.4); } 20% { transform: scaleY(1.0); -webkit-transform: scaleY(1.0); } }
解析:在類名為 spinner
元素下有五個 div 實現(xiàn)的長方形元素,設置Y軸的縮放,通過不同的延遲時間來達到依次變化的效果。
HTML
<div class="spinner"> <div class="cube1"></div> <div class="cube2"></div> </div>
CSS
.cube1, .cube2 { background-color: #333; width: 15px; height: 15px; position: absolute; top: 0; left: 0; -webkit-animation: sk-cubemove 1.8s infinite ease-in-out; animation: sk-cubemove 1.8s infinite ease-in-out; } .cube2 { -webkit-animation-delay: -0.9s; animation-delay: -0.9s; } @-webkit-keyframes sk-cubemove { 25% { -webkit-transform: translateX(42px) rotate(-90deg) scale(0.5) } 50% { -webkit-transform: translateX(42px) translateY(42px) rotate(-180deg) } 75% { -webkit-transform: translateX(0px) translateY(42px) rotate(-270deg) scale(0.5) } 100% { -webkit-transform: rotate(-360deg) } } @keyframes sk-cubemove { 25% { transform: translateX(42px) rotate(-90deg) scale(0.5); -webkit-transform: translateX(42px) rotate(-90deg) scale(0.5); } 50% { transform: translateX(42px) translateY(42px) rotate(-179deg); -webkit-transform: translateX(42px) translateY(42px) rotate(-179deg); } 50.1% { transform: translateX(42px) translateY(42px) rotate(-180deg); -webkit-transform: translateX(42px) translateY(42px) rotate(-180deg); } 75% { transform: translateX(0px) translateY(42px) rotate(-270deg) scale(0.5); -webkit-transform: translateX(0px) translateY(42px) rotate(-270deg) scale(0.5); } 100% { transform: rotate(-360deg); -webkit-transform: rotate(-360deg); } }
解析:兩個子元素實現(xiàn)白色的方塊,添加動畫屬性,在X軸和Y軸分別設置移動距離和縮放,通過不同的延遲時間來分離他們,rorate
實現(xiàn)圍繞中心旋轉。
HTML
<div class="spinner"></div>
CSS
.spinner { width: 40px; height: 40px; margin: 100px auto; background-color: #333; border-radius: 100%; -webkit-animation: sk-scaleout 1.0s infinite ease-in-out; animation: sk-scaleout 1.0s infinite ease-in-out; } @-webkit-keyframes sk-scaleout { 0% { -webkit-transform: scale(0) } 100% { -webkit-transform: scale(1.0); opacity: 0; } } @keyframes sk-scaleout { 0% { -webkit-transform: scale(0); transform: scale(0); } 100% { -webkit-transform: scale(1.0); transform: scale(1.0); opacity: 0; } }
解析:唯一的 div
元素實現(xiàn)白色背景圓點,通過設置縮放和透明度實現(xiàn)呼吸燈的效果。
HTML
<div class="spinner"> <div class="dot1"></div> <div class="dot2"></div> </div>
CSS
.spinner { margin: 100px auto; width: 40px; height: 40px; position: relative; text-align: center; -webkit-animation: sk-rotate 2.0s infinite linear; animation: sk-rotate 2.0s infinite linear; } .dot1, .dot2 { width: 60%; height: 60%; display: inline-block; position: absolute; top: 0; background-color: #333; border-radius: 100%; -webkit-animation: sk-bounce 2.0s infinite ease-in-out; animation: sk-bounce 2.0s infinite ease-in-out; } .dot2 { top: auto; bottom: 0; -webkit-animation-delay: -1.0s; animation-delay: -1.0s; } @-webkit-keyframes sk-rotate { 100% { -webkit-transform: rotate(360deg) }} @keyframes sk-rotate { 100% { transform: rotate(360deg); -webkit-transform: rotate(360deg) }} @-webkit-keyframes sk-bounce { 0%, 100% { -webkit-transform: scale(0.0) } 50% { -webkit-transform: scale(1.0) } } @keyframes sk-bounce { 0%, 100% { transform: scale(0.0); -webkit-transform: scale(0.0); } 50% { transform: scale(1.0); -webkit-transform: scale(1.0); } }
解析:兩個實心圓形圍繞中心做循環(huán)的縮放旋轉運動,因為不同的延遲時間來達到它們同一時間呈現(xiàn)相反的表現(xiàn)。
HTML
<div class="spinner"> <div class="bounce1"></div> <div class="bounce2"></div> <div class="bounce3"></div> </div>
CSS
.spinner { margin: 100px auto 0; width: 70px; text-align: center; } .spinner > div { width: 18px; height: 18px; background-color: #333; border-radius: 100%; display: inline-block; -webkit-animation: sk-bouncedelay 1.4s infinite ease-in-out both; animation: sk-bouncedelay 1.4s infinite ease-in-out both; } .spinner .bounce1 { -webkit-animation-delay: -0.32s; animation-delay: -0.32s; } .spinner .bounce2 { -webkit-animation-delay: -0.16s; animation-delay: -0.16s; } @-webkit-keyframes sk-bouncedelay { 0%, 80%, 100% { -webkit-transform: scale(0) } 40% { -webkit-transform: scale(1.0) } } @keyframes sk-bouncedelay { 0%, 80%, 100% { -webkit-transform: scale(0); transform: scale(0); } 40% { -webkit-transform: scale(1.0); transform: scale(1.0); } }
解析:三個實色圓形橫向排列,線性動畫 scale
從0到1,通過給它們不同的延遲時間,呈現(xiàn)依次交替的效果。
HTML
<div class="sk-circle"> <div class="sk-circle1 sk-child"></div> <div class="sk-circle2 sk-child"></div> <div class="sk-circle3 sk-child"></div> <div class="sk-circle4 sk-child"></div> <div class="sk-circle5 sk-child"></div> <div class="sk-circle6 sk-child"></div> <div class="sk-circle7 sk-child"></div> <div class="sk-circle8 sk-child"></div> <div class="sk-circle9 sk-child"></div> <div class="sk-circle10 sk-child"></div> <div class="sk-circle11 sk-child"></div> <div class="sk-circle12 sk-child"></div> </div>
CSS
.sk-circle { margin: 100px auto; width: 40px; height: 40px; position: relative; } .sk-circle .sk-child { width: 100%; height: 100%; position: absolute; left: 0; top: 0; } .sk-circle .sk-child:before { content: ''; display: block; margin: 0 auto; width: 15%; height: 15%; background-color: #333; border-radius: 100%; -webkit-animation: sk-circleBounceDelay 1.2s infinite ease-in-out both; animation: sk-circleBounceDelay 1.2s infinite ease-in-out both; } .sk-circle .sk-circle2 { -webkit-transform: rotate(30deg); -ms-transform: rotate(30deg); transform: rotate(30deg); } .sk-circle .sk-circle3 { -webkit-transform: rotate(60deg); -ms-transform: rotate(60deg); transform: rotate(60deg); } .sk-circle .sk-circle4 { -webkit-transform: rotate(90deg); -ms-transform: rotate(90deg); transform: rotate(90deg); } .sk-circle .sk-circle5 { -webkit-transform: rotate(120deg); -ms-transform: rotate(120deg); transform: rotate(120deg); } .sk-circle .sk-circle6 { -webkit-transform: rotate(150deg); -ms-transform: rotate(150deg); transform: rotate(150deg); } .sk-circle .sk-circle7 { -webkit-transform: rotate(180deg); -ms-transform: rotate(180deg); transform: rotate(180deg); } .sk-circle .sk-circle8 { -webkit-transform: rotate(210deg); -ms-transform: rotate(210deg); transform: rotate(210deg); } .sk-circle .sk-circle9 { -webkit-transform: rotate(240deg); -ms-transform: rotate(240deg); transform: rotate(240deg); } .sk-circle .sk-circle10 { -webkit-transform: rotate(270deg); -ms-transform: rotate(270deg); transform: rotate(270deg); } .sk-circle .sk-circle11 { -webkit-transform: rotate(300deg); -ms-transform: rotate(300deg); transform: rotate(300deg); } .sk-circle .sk-circle12 { -webkit-transform: rotate(330deg); -ms-transform: rotate(330deg); transform: rotate(330deg); } .sk-circle .sk-circle2:before { -webkit-animation-delay: -1.1s; animation-delay: -1.1s; } .sk-circle .sk-circle3:before { -webkit-animation-delay: -1s; animation-delay: -1s; } .sk-circle .sk-circle4:before { -webkit-animation-delay: -0.9s; animation-delay: -0.9s; } .sk-circle .sk-circle5:before { -webkit-animation-delay: -0.8s; animation-delay: -0.8s; } .sk-circle .sk-circle6:before { -webkit-animation-delay: -0.7s; animation-delay: -0.7s; } .sk-circle .sk-circle7:before { -webkit-animation-delay: -0.6s; animation-delay: -0.6s; } .sk-circle .sk-circle8:before { -webkit-animation-delay: -0.5s; animation-delay: -0.5s; } .sk-circle .sk-circle9:before { -webkit-animation-delay: -0.4s; animation-delay: -0.4s; } .sk-circle .sk-circle10:before { -webkit-animation-delay: -0.3s; animation-delay: -0.3s; } .sk-circle .sk-circle11:before { -webkit-animation-delay: -0.2s; animation-delay: -0.2s; } .sk-circle .sk-circle12:before { -webkit-animation-delay: -0.1s; animation-delay: -0.1s; } @-webkit-keyframes sk-circleBounceDelay { 0%, 80%, 100% { -webkit-transform: scale(0); transform: scale(0); } 40% { -webkit-transform: scale(1); transform: scale(1); } } @keyframes sk-circleBounceDelay { 0%, 80%, 100% { -webkit-transform: scale(0); transform: scale(0); } 40% { -webkit-transform: scale(1); transform: scale(1); } }
解析:整個加載效果由12個圓心組成,設置不同的旋轉讓它們呈現(xiàn)圓形環(huán)繞,然后設置不同的延遲時間,讓它們做縮放運動。
HTML
<div class="sk-cube-grid"> <div class="sk-cube sk-cube1"></div> <div class="sk-cube sk-cube2"></div> <div class="sk-cube sk-cube3"></div> <div class="sk-cube sk-cube4"></div> <div class="sk-cube sk-cube5"></div> <div class="sk-cube sk-cube6"></div> <div class="sk-cube sk-cube7"></div> <div class="sk-cube sk-cube8"></div> <div class="sk-cube sk-cube9"></div> </div>
CSS
.sk-cube-grid { width: 40px; height: 40px; margin: 100px auto; } .sk-cube-grid .sk-cube { width: 33%; height: 33%; background-color: #333; float: left; -webkit-animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out; animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out; } .sk-cube-grid .sk-cube1 { -webkit-animation-delay: 0.2s; animation-delay: 0.2s; } .sk-cube-grid .sk-cube2 { -webkit-animation-delay: 0.3s; animation-delay: 0.3s; } .sk-cube-grid .sk-cube3 { -webkit-animation-delay: 0.4s; animation-delay: 0.4s; } .sk-cube-grid .sk-cube4 { -webkit-animation-delay: 0.1s; animation-delay: 0.1s; } .sk-cube-grid .sk-cube5 { -webkit-animation-delay: 0.2s; animation-delay: 0.2s; } .sk-cube-grid .sk-cube6 { -webkit-animation-delay: 0.3s; animation-delay: 0.3s; } .sk-cube-grid .sk-cube7 { -webkit-animation-delay: 0s; animation-delay: 0s; } .sk-cube-grid .sk-cube8 { -webkit-animation-delay: 0.1s; animation-delay: 0.1s; } .sk-cube-grid .sk-cube9 { -webkit-animation-delay: 0.2s; animation-delay: 0.2s; } @-webkit-keyframes sk-cubeGridScaleDelay { 0%, 70%, 100% { -webkit-transform: scale3D(1, 1, 1); transform: scale3D(1, 1, 1); } 35% { -webkit-transform: scale3D(0, 0, 1); transform: scale3D(0, 0, 1); } } @keyframes sk-cubeGridScaleDelay { 0%, 70%, 100% { -webkit-transform: scale3D(1, 1, 1); transform: scale3D(1, 1, 1); } 35% { -webkit-transform: scale3D(0, 0, 1); transform: scale3D(0, 0, 1); } }
解析:九個方塊通過 grid
布局,形成橫向縱向分別三塊,設置不同的延遲時間讓它們做線性 3D 縮放運動。
HTML
<div class="sk-fading-circle"> <div class="sk-circle1 sk-circle"></div> <div class="sk-circle2 sk-circle"></div> <div class="sk-circle3 sk-circle"></div> <div class="sk-circle4 sk-circle"></div> <div class="sk-circle5 sk-circle"></div> <div class="sk-circle6 sk-circle"></div> <div class="sk-circle7 sk-circle"></div> <div class="sk-circle8 sk-circle"></div> <div class="sk-circle9 sk-circle"></div> <div class="sk-circle10 sk-circle"></div> <div class="sk-circle11 sk-circle"></div> <div class="sk-circle12 sk-circle"></div> </div>
CSS
.sk-fading-circle { margin: 100px auto; width: 40px; height: 40px; position: relative; } .sk-fading-circle .sk-circle { width: 100%; height: 100%; position: absolute; left: 0; top: 0; } .sk-fading-circle .sk-circle:before { content: ''; display: block; margin: 0 auto; width: 15%; height: 15%; background-color: #333; border-radius: 100%; -webkit-animation: sk-circleFadeDelay 1.2s infinite ease-in-out both; animation: sk-circleFadeDelay 1.2s infinite ease-in-out both; } .sk-fading-circle .sk-circle2 { -webkit-transform: rotate(30deg); -ms-transform: rotate(30deg); transform: rotate(30deg); } .sk-fading-circle .sk-circle3 { -webkit-transform: rotate(60deg); -ms-transform: rotate(60deg); transform: rotate(60deg); } .sk-fading-circle .sk-circle4 { -webkit-transform: rotate(90deg); -ms-transform: rotate(90deg); transform: rotate(90deg); } .sk-fading-circle .sk-circle5 { -webkit-transform: rotate(120deg); -ms-transform: rotate(120deg); transform: rotate(120deg); } .sk-fading-circle .sk-circle6 { -webkit-transform: rotate(150deg); -ms-transform: rotate(150deg); transform: rotate(150deg); } .sk-fading-circle .sk-circle7 { -webkit-transform: rotate(180deg); -ms-transform: rotate(180deg); transform: rotate(180deg); } .sk-fading-circle .sk-circle8 { -webkit-transform: rotate(210deg); -ms-transform: rotate(210deg); transform: rotate(210deg); } .sk-fading-circle .sk-circle9 { -webkit-transform: rotate(240deg); -ms-transform: rotate(240deg); transform: rotate(240deg); } .sk-fading-circle .sk-circle10 { -webkit-transform: rotate(270deg); -ms-transform: rotate(270deg); transform: rotate(270deg); } .sk-fading-circle .sk-circle11 { -webkit-transform: rotate(300deg); -ms-transform: rotate(300deg); transform: rotate(300deg); } .sk-fading-circle .sk-circle12 { -webkit-transform: rotate(330deg); -ms-transform: rotate(330deg); transform: rotate(330deg); } .sk-fading-circle .sk-circle2:before { -webkit-animation-delay: -1.1s; animation-delay: -1.1s; } .sk-fading-circle .sk-circle3:before { -webkit-animation-delay: -1s; animation-delay: -1s; } .sk-fading-circle .sk-circle4:before { -webkit-animation-delay: -0.9s; animation-delay: -0.9s; } .sk-fading-circle .sk-circle5:before { -webkit-animation-delay: -0.8s; animation-delay: -0.8s; } .sk-fading-circle .sk-circle6:before { -webkit-animation-delay: -0.7s; animation-delay: -0.7s; } .sk-fading-circle .sk-circle7:before { -webkit-animation-delay: -0.6s; animation-delay: -0.6s; } .sk-fading-circle .sk-circle8:before { -webkit-animation-delay: -0.5s; animation-delay: -0.5s; } .sk-fading-circle .sk-circle9:before { -webkit-animation-delay: -0.4s; animation-delay: -0.4s; } .sk-fading-circle .sk-circle10:before { -webkit-animation-delay: -0.3s; animation-delay: -0.3s; } .sk-fading-circle .sk-circle11:before { -webkit-animation-delay: -0.2s; animation-delay: -0.2s; } .sk-fading-circle .sk-circle12:before { -webkit-animation-delay: -0.1s; animation-delay: -0.1s; } @-webkit-keyframes sk-circleFadeDelay { 0%, 39%, 100% { opacity: 0; } 40% { opacity: 1; } } @keyframes sk-circleFadeDelay { 0%, 39%, 100% { opacity: 0; } 40% { opacity: 1; } }
解析:加載動畫由12個實色圓點360度依次擺開,依次做旋轉和透明度的改變。
HTML
<div class="sk-folding-cube"> <div class="sk-cube1 sk-cube"></div> <div class="sk-cube2 sk-cube"></div> <div class="sk-cube4 sk-cube"></div> <div class="sk-cube3 sk-cube"></div> </div>
CSS
.sk-folding-cube { margin: 20px auto; width: 40px; height: 40px; position: relative; -webkit-transform: rotateZ(45deg); transform: rotateZ(45deg); } .sk-folding-cube .sk-cube { float: left; width: 50%; height: 50%; position: relative; -webkit-transform: scale(1.1); -ms-transform: scale(1.1); transform: scale(1.1); } .sk-folding-cube .sk-cube:before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-color: #333; -webkit-animation: sk-foldCubeAngle 2.4s infinite linear both; animation: sk-foldCubeAngle 2.4s infinite linear both; -webkit-transform-origin: 100% 100%; -ms-transform-origin: 100% 100%; transform-origin: 100% 100%; } .sk-folding-cube .sk-cube2 { -webkit-transform: scale(1.1) rotateZ(90deg); transform: scale(1.1) rotateZ(90deg); } .sk-folding-cube .sk-cube3 { -webkit-transform: scale(1.1) rotateZ(180deg); transform: scale(1.1) rotateZ(180deg); } .sk-folding-cube .sk-cube4 { -webkit-transform: scale(1.1) rotateZ(270deg); transform: scale(1.1) rotateZ(270deg); } .sk-folding-cube .sk-cube2:before { -webkit-animation-delay: 0.3s; animation-delay: 0.3s; } .sk-folding-cube .sk-cube3:before { -webkit-animation-delay: 0.6s; animation-delay: 0.6s; } .sk-folding-cube .sk-cube4:before { -webkit-animation-delay: 0.9s; animation-delay: 0.9s; } @-webkit-keyframes sk-foldCubeAngle { 0%, 10% { -webkit-transform: perspective(140px) rotateX(-180deg); transform: perspective(140px) rotateX(-180deg); opacity: 0; } 25%, 75% { -webkit-transform: perspective(140px) rotateX(0deg); transform: perspective(140px) rotateX(0deg); opacity: 1; } 90%, 100% { -webkit-transform: perspective(140px) rotateY(180deg); transform: perspective(140px) rotateY(180deg); opacity: 0; } } @keyframes sk-foldCubeAngle { 0%, 10% { -webkit-transform: perspective(140px) rotateX(-180deg); transform: perspective(140px) rotateX(-180deg); opacity: 0; } 25%, 75% { -webkit-transform: perspective(140px) rotateX(0deg); transform: perspective(140px) rotateX(0deg); opacity: 1; } 90%, 100% { -webkit-transform: perspective(140px) rotateY(180deg); transform: perspective(140px) rotateY(180deg); opacity: 0; } }
解析:四個等邊方塊形成一個正方形,整個旋轉45度,然后每個方塊通過不同的延遲時間,沿X軸做翻轉動畫。設置perspective
是為了有3D的效果。
結論:以上的這些案例原理都是通過不同的延遲時間,給元素或子元素設置包括X、Y和Z軸上的移動旋轉,以及縮放來達到動畫的效果。有了這些參考,加上創(chuàng)意還能做出更多的類型加載效果。
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