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(gè) div
元素,設(shè)置邊長為 40px 背景白色的正方形,然后設(shè)置循環(huán)翻轉(zhuǎn)動(dòng)畫實(shí)現(xiàn)該加載效果動(dòng)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(gè)父元素 div,內(nèi)含六個(gè)白色實(shí)心圓點(diǎn),添加旋轉(zhuǎn)動(dòng)畫,通過設(shè)置不同的延遲時(shí)間來達(dá)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(gè)子元素 div 實(shí)現(xiàn)半透明的圓形,設(shè)置絕對(duì)定位重疊在一起,然后設(shè)置相同的動(dòng)畫通過不同的延遲時(shí)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(gè) div 實(shí)現(xiàn)的長方形元素,設(shè)置Y軸的縮放,通過不同的延遲時(shí)間來達(dá)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(gè)子元素實(shí)現(xiàn)白色的方塊,添加動(dòng)畫屬性,在X軸和Y軸分別設(shè)置移動(dòng)距離和縮放,通過不同的延遲時(shí)間來分離他們,rorate
實(shí)現(xiàn)圍繞中心旋轉(zhuǎn)。
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(shí)現(xiàn)白色背景圓點(diǎn),通過設(shè)置縮放和透明度實(shí)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(gè)實(shí)心圓形圍繞中心做循環(huán)的縮放旋轉(zhuǎn)運(yùn)動(dòng),因?yàn)椴煌难舆t時(shí)間來達(dá)到它們同一時(shí)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(gè)實(shí)色圓形橫向排列,線性動(dòng)畫 scale
從0到1,通過給它們不同的延遲時(shí)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(gè)加載效果由12個(gè)圓心組成,設(shè)置不同的旋轉(zhuǎn)讓它們呈現(xiàn)圓形環(huán)繞,然后設(shè)置不同的延遲時(shí)間,讓它們做縮放運(yùn)動(dòng)。
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(gè)方塊通過 grid
布局,形成橫向縱向分別三塊,設(shè)置不同的延遲時(shí)間讓它們做線性 3D 縮放運(yùn)動(dòng)。
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(dòng)畫由12個(gè)實(shí)色圓點(diǎn)360度依次擺開,依次做旋轉(zhuǎn)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(gè)等邊方塊形成一個(gè)正方形,整個(gè)旋轉(zhuǎn)45度,然后每個(gè)方塊通過不同的延遲時(shí)間,沿X軸做翻轉(zhuǎn)動(dòng)畫。設(shè)置perspective
是為了有3D的效果。
結(jié)論:以上的這些案例原理都是通過不同的延遲時(shí)間,給元素或子元素設(shè)置包括X、Y和Z軸上的移動(dòng)旋轉(zhuǎn),以及縮放來達(dá)到動(dòng)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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