.loader {
text-align: center;
vertical-align: middle;
position: relative;
display: flex;
background: white;
padding: 150px;
/* box-shadow: 0px 40px 60px -20px rgba(0, 0, 0, 0.2); */
}

.loader span {
display: block;
width: 20px;
height: 20px;
background: #eee;
border-radius: 50%;
margin: 0 5px;
box-shadow: 0 2px 2px rgba(0, 0, 0, 0.2);
}

.loader span:nth-child(2) {
background: #f07e6e;
}

.loader span:nth-child(3) {
background: #84cdfa;
}

.loader span:nth-child(4) {
background: #5ad1cd;
}

.loader span:not(:last-child) {
animation: animate 1.5s linear infinite;
}

@keyframes animate {
0% {
transform: translateX(0);
}

100% {
transform: translateX(30px);
}
}

.loader span:last-child {
animation: jump 1.5s ease-in-out infinite;
}

@keyframes jump {
0% {
transform: translate(0, 0);
}
10% {
transform: translate(10px, -10px);
}
20% {
transform: translate(20px, 10px);
}
30% {
transform: translate(30px, -50px);
}
70% {
transform: translate(-150px, -50px);
}
80% {
transform: translate(-140px, 10px);
}
90% {
transform: translate(-130px, -10px);
}
100% {
transform: translate(-120px, 0);
}
}