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Book opening animation (pure css)
<div class="book">
<span class="page turn"></span>
<span class="page turn"></span>
<span class="page turn"></span>
<span class="page turn"></span>
<span class="page turn"></span>
<span class="page turn"></span>
<span class="cover"></span>
<span class="page"></span>
<span class="cover turn"></span>
</div>
body {
background-color: #4F4E68;
}
.book {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
margin: auto;
width: 18.5rem;
height: 12.5rem;
perspective: 70rem;
}
.cover {
background-color: #36354e;
transform: rotateY(0deg);
width: 9.25rem;
height: 12.5rem;
}
.page {
top: 0.25rem;
left: 0.25rem;
background-color: #e9e6c4;
transform: rotateY(0deg);
width: 9rem;
height: 12rem;
text-align: right;
font-size: 8px;
color: #777;
font-family: monospace;
}
.page::before, .page::after {
display: block;
border-top: 1px dashed rgba(0, 0, 0, 0.3);
content: "";
padding-bottom: 1rem;
}
.cover, .page {
position: absolute;
padding: 1rem;
transform-origin: 100% 0;
border-radius: 5px 0 0 5px;
box-shadow: inset 3px 0px 20px rgba(0, 0, 0, 0.2),
0px 0px 15px rgba(0, 0, 0, 0.1);
box-sizing: border-box;
}
.cover.turn {
animation: bookCover 3s forwards;
}
.page.turn {
animation: bookOpen 3s forwards;
}
.page:nth-of-type(1) {
animation-delay: 0.05s;
}
.page:nth-of-type(2) {
animation-delay: 0.33s
}
.page:nth-of-type(3) {
animation-delay: 0.66s;
}
.page:nth-of-type(4) {
animation: bookOpen150deg 3s forwards;
animation-delay: 0.99s;
}
.page:nth-of-type(5) {
animation: bookOpen30deg 3s forwards;
animation-delay: 1.2s;
}
.page:nth-of-type(6) {
animation: bookOpen55deg 3s forwards;
animation-delay: 1.25s;
}
@keyframes bookOpen {
30% { z-index: 999 }
100% { transform: rotateY(180deg);
z-index: 999;}
}
@keyframes bookCover {
30% { z-index: 999 }
100% { transform: rotateY(180deg);
z-index: 1;}
}
@keyframes bookOpen150deg {
30% { z-index: 999 }
100% { transform: rotateY(150deg);
z-index: 999;}
}
@keyframes bookOpen55deg {
30% { z-index: 999 }
100% { transform: rotateY(55deg);
z-index: 999;}
}
@keyframes bookOpen30deg {
50% { z-index: 999 }
100% { transform: rotateY(30deg);
z-index: 999;}
}
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