HTML
<div class="progress-bar">
<div class="bar bar-30 lime">
<div class="face top">
<div class="growing-bar"></div>
</div>
<div class="face side-0">
<div class="growing-bar"></div>
</div>
<div class="face floor">
<div class="growing-bar"></div>
</div>
<div class="face side-a"></div>
<div class="face side-b"></div>
<div class="face side-1">
<div class="growing-bar"></div>
</div>
</div>
</div>
CSS
html, body {
height: 100%;
width: 100%;
display: flex;
justify-content: center;
align-items: center;
background: #333;
margin: 0
}
.progress-bar {
font-size: 1em;
perspective: 1000px;
perspective-origin: 50% 50%;
backface-visibility: visible;
width: 500px;
}
.bar {
font-size: 1em;
position: relative;
height: 10em;
transition: all 0.3s ease-in-out;
transform: rotateX(60deg) rotateY(0deg);
transform-style: preserve-3d;
}
.bar .face {
font-size: 2em;
position: relative;
width: 100%;
height: 2em;
background-color: rgba(254, 254, 254, 0.3);
}
.bar .face.side-a,
.bar .face.side-b {
width: 2em;
}
.bar .side-a {
transform: rotateX(90deg)
rotateY(-90deg)
translateX(2em)
translateY(1em)
translateZ(1em);
}
.bar .side-b {
transform: rotateX(90deg)
rotateY(-90deg)
translateX(4em)
translateY(1em)
translateZ(-1em);
position: absolute;
right: 0;
}
.bar .side-0 {
transform: rotateX(90deg)
rotateY(0)
translateX(0)
translateY(1em)
translateZ(-1em);
}
.bar .side-1 {
transform: rotateX(90deg)
rotateY(0)
translateX(0)
translateY(1em)
translateZ(3em);
}
.bar .top {
transform: rotateX(0deg)
rotateY(0)
translateX(0em)
translateY(4em)
translateZ(2em);
}
.bar .floor {
box-shadow: 0 0.1em 0.6em rgba(0, 0, 0, 0.3),
0.6em -0.5em 3em rgba(0, 0, 0, 0.3),
1em -1em 8em #fefefe;
}
.growing-bar {
transition: all 0.3s ease-in-out;
background-color: rgba(118, 201, 0, 0.6);
height: 2em;
animation-name: loader;
animation-iteration-count: 1;
animation-timing-function: ease-in;
animation-duration: 5s;
}
@keyframes loader {
0% { width: 0%; }
100% { width: 100%; }
}
.bar.lime .side-0 .growing-bar {
box-shadow: -0.5em -1.5em 4em #76c900;
}
.bar.lime .floor .growing-bar {
box-shadow: 0em 0em 2em #76c900;
}