html,
body {
   height: 100vh;
     width: 100vw;
     margin: 0px;
    background-color: #FFFFFF;
}
 .main-content {
  display: flex;
   flex-direction: column;
    height: 0%;
    width: 100%;
    align-items: center;
    justify-content: center;
    transition: opacity .4s ease-out;



  }
.center {
    align-items: center;
    display: flex;
    justify-content: center;
    height: 0%;
    width: 100%;
}


img {
max-width: 43%;
height: auto;
}

/**/


* {
  border: 0;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #FFFFFF;
  --fg: #17181c;
  --c1: #f42f25;
  --c2: #f49725;
  --c3: #255ff4;
  --c4: #9725f4;
  font-size: calc(16px + (24 - 16) * (100vw - 320px) / (1280 - 320));
}

body {
  background: var(--bg);
  color: var(--fg);
  display: flex;
  flex-wrap: wrap;
  font: 1em/1.5 sans-serif;
  justify-content: center;
  align-items: center;
  align-content: center;
  height: 100vh;
}

.pl1, .pl2 {
  justify-content: space-around;
}
.pl1__a, .pl1__b, .pl1__c, .pl2__a, .pl2__b, .pl2__c {
  border-radius: 50%;
  width: 1em;
  height: 1em;
  transform-origin: 50% 100%;
}

.pl1__a, .pl1__b, .pl1__c {
  animation: bounce1 1s linear infinite;
}

.pl2__a, .pl2__b, .pl2__c {
  animation: bounce2 2s linear infinite;
}

.pl3, .pl4 {
  justify-content: space-between;
}
.pl3__a, .pl3__b, .pl3__c, .pl3__d, .pl4__a, .pl4__b, .pl4__c, .pl4__d {
  width: 0.75em;
  height: 0.75em;
}

.pl3__a, .pl3__b, .pl3__c, .pl3__d {
  animation: bounce3 2s ease-in-out infinite;
  transform-origin: 50% 0;
}

.pl4 {
  align-items: flex-end;
}
.pl4__a, .pl4__b, .pl4__c, .pl4__d {
  animation: bounce4 2s linear infinite;
  transform-origin: 50% 100%;
}

.pl1, .pl2, .pl3, .pl4 {
  display: flex;
  margin: 1.5em;
  width: 6em;
  height: 6em;
}
.pl1__a, .pl2__a, .pl3__a, .pl4__a {
  background: var(--c1);
}
.pl1__b, .pl2__b, .pl3__b, .pl4__b {
  background: var(--c2);
  animation-delay: 0.1s;
}
.pl1__c, .pl2__c, .pl3__c, .pl4__c {
  background: var(--c3);
  animation-delay: 0.2s;
}

.pl3__d, .pl4__d {
  background: var(--c4);
  animation-delay: 0.3s;
}

/* Animations */
@keyframes bounce1 {
  from, to {
    transform: translateY(0) scale(1, 1);
    animation-timing-function: ease-in;
  }
  45% {
    transform: translateY(5em) scale(1, 1);
    animation-timing-function: linear;
  }
  50% {
    transform: translateY(5em) scale(1.5, 0.5);
    animation-timing-function: linear;
  }
  55% {
    transform: translateY(5em) scale(1, 1);
    animation-timing-function: ease-out;
  }
}
@keyframes bounce2 {
  from, to {
    transform: translateY(0) scale(1, 1);
    animation-timing-function: ease-in;
  }
  9%, 29%, 49%, 69% {
    transform: translateY(5em) scale(1, 1);
    animation-timing-function: linear;
  }
  10% {
    transform: translateY(5em) scale(1.5, 0.5);
    animation-timing-function: linear;
  }
  11%, 31%, 51%, 71%, 91% {
    transform: translateY(5em) scale(1, 1);
    animation-timing-function: ease-out;
  }
  20% {
    transform: translateY(2.5em) scale(1, 1);
    animation-timing-function: ease-in;
  }
  30% {
    transform: translateY(5em) scale(1.25, 0.75);
    animation-timing-function: linear;
  }
  40% {
    transform: translateY(3.75em) scale(1, 1);
    animation-timing-function: ease-in;
  }
  50% {
    transform: translateY(5em) scale(1.125, 0.875);
    animation-timing-function: linear;
  }
  60% {
    transform: translateY(4.375em) scale(1, 1);
    animation-timing-function: ease-in;
  }
  70% {
    transform: translateY(5em) scale(1.0625, 0.9375);
    animation-timing-function: linear;
  }
  85% {
    transform: translateY(5em) scale(1, 1);
    animation-timing-function: ease-in;
  }
  90% {
    transform: translateY(5em) scale(1.875, 0.125);
    animation-timing-function: ease-in-out;
  }
}
@keyframes bounce3 {
  from, 5%, 95%, to {
    transform: translateY(0) scaleY(1);
  }
  16.7% {
    transform: translateY(0) scaleY(8);
  }
  28.3%, 38.3% {
    transform: translateY(5.25em) scaleY(1);
  }
  50% {
    transform: translateY(2.625em) scaleY(4.5);
  }
  61.7%, 71.7% {
    transform: translateY(2.625em) scaleY(1);
  }
  83.3% {
    transform: translateY(0) scaleY(4.5);
  }
}
@keyframes bounce4 {
  from, 20%, 40%, 60%, 80%, to {
    transform: scaleY(1);
    animation-timing-function: ease-out;
  }
  10% {
    transform: scaleY(8);
    animation-timing-function: ease-in;
  }
  30% {
    transform: scaleY(4);
    animation-timing-function: ease-in;
  }
  50% {
    transform: scaleY(2);
    animation-timing-function: ease-in;
  }
  70% {
    transform: scaleY(1.5);
    animation-timing-function: ease-in;
  }
}