.loading svg polyline {
fill: none;
stroke-width: 3;
stroke-linecap: round;
stroke-linejoin: round;
}

.loading svg polyline#back {
fill: none;
stroke: #ff4d5033;
}

.loading svg polyline#front {
fill: none;
stroke: #ff4d4f;
stroke-dasharray: 48, 144;
stroke-dashoffset: 192;
animation: dash_682 1.4s linear infinite;
}

@keyframes dash_682 {
72.5% {
opacity: 0;
}

to {
stroke-dashoffset: 0;
}
}

Css file

<div class="loading">
<svg width="64px" height="48px">
<polyline points="0.157 23.954, 14 23.954, 21.843 48, 43 0, 50 24, 64 24" id="back"></polyline>
<polyline points="0.157 23.954, 14 23.954, 21.843 48, 43 0, 50 24, 64 24" id="front"></polyline>
</svg>
</div>

Html

.loader {
width: 64px;
height: 64px;
position: relative;
background: #FFF;
border-radius: 4px;
overflow: hidden;
}

.loader:before {
content: "";
position: absolute;
left: 0;
bottom: 0;
width: 40px;
height: 40px;
transform: rotate(45deg) translate(30%, 40%);
background: #ff9371;
box-shadow: 32px -34px 0 5px #ff3d00;
animation: slide 2s infinite ease-in-out alternate;
}

.loader:after {
content: "";
position: absolute;
left: 10px;
top: 10px;
width: 16px;
height: 16px;
border-radius: 50%;
background: #ff3d00;
transform: rotate(0deg);
transform-origin: 35px 145px;
animation: rotate 2s infinite ease-in-out;
}

@keyframes slide {
0% , 100% {
bottom: -35px
}

25% , 75% {
bottom: -2px
}

20% , 80% {
bottom: 2px
}
}

@keyframes rotate {
0% {
transform: rotate(-15deg)
}

25% , 75% {
transform: rotate(0deg)
}

100% {
transform: rotate(25deg)
}
}

Html :-

<label>
<input type="checkbox" class="slider">
<div class="switch">
<div class="suns"></div>
<div class="moons">
<div class="star star-1"></div>
<div class="star star-2"></div>
<div class="star star-3"></div>
<div class="star star-4"></div>
<div class="star star-5"></div>
<div class="first-moon"></div>
</div>
<div class="sand"></div>
<div class="bb8">
<div class="antennas">
<div class="antenna short"></div>
<div class="antenna long"></div>
</div>
<div class="head">
<div class="stripe one"></div>
<div class="stripe two"></div>
<div class="eyes">
<div class="eye one"></div>
<div class="eye two"></div>
</div>
<div class="stripe detail">
<div class="detail zero"></div>
<div class="detail zero"></div>
<div class="detail one"></div>
<div class="detail two"></div>
<div class="detail three"></div>
<div class="detail four"></div>
<div class="detail five"></div>
<div class="detail five"></div>
</div>
<div class="stripe three"></div>
</div>
<div class="ball">
<div class="lines one"></div>
<div class="lines two"></div>
<div class="ring one"></div>
<div class="ring two"></div>
<div class="ring three"></div>
</div>
<div class="shadow"></div>
</div>
</div>
</label>