html,
body {
  position: relative;
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: auto;
}

.ico01 {
  background-color: #ea5f20;
  position: relative;
  z-index: 4;
  font-size: 30px;
}

.ico02 {
  background-color: #ea5f20;
  transition: transform 1.2s cubic-bezier(0.77, 0, 0.175, 1);
  z-index: 3;
}

.ico03 {
  background-color: #ea5f20;
  transition: transform 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.4s;
  z-index: 2;
}

.ico04 {
  background-color: #ea5f20;
  transition: transform 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.8s;
  z-index: 1;
}

.ico05 {
  background-color: #ea5f20;
  transition: transform 1.2s cubic-bezier(0.77, 0, 0.175, 1) 1s;
  z-index: 1;
}

.ico06 {
  background-color: #ea5f20;
  transition: transform 1.2s cubic-bezier(0.77, 0, 0.175, 1) 1.2s;
  z-index: 1;
}

.move-ico {
  position: absolute;
  top: 0;
  font-size: 25px;
}

.active .ico02 {
  transform: translateY(-64px);
  transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.8s;
}

.active .ico03 {
  transform: translateY(-128px);
  transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.6s;
}

.active .ico04 {
  transform: translateY(-192px);
  transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.5s;
}

.active .ico05 {
  transform: translateY(-256px);
  transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.3s;
}

.active .ico06 {
  transform: translateY(-320px);
  transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.1s;
}

.fab__pulse {
  position: fixed;
  z-index: 999;
  right: 0px;
  bottom: 0px;
  width: 88px;
  height: 88px;
}

.fab__pulse ul {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.fab__pulse ul li {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  cursor: pointer;
}

.fab__pulse .pulse-rings {
  position: absolute;
  top: 32%;
  left: 32%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fab__pulse .pulse {
  position: absolute;
  border-radius: 50%;
  opacity: 0;
  border-color: #ea5f20;
  border-style: solid;
}

.fab__pulse .pulse-1 {
  height: 54px;
  width: 54px;
  border-width: 3px;
  -webkit-animation: 1.5s ease-out 0s infinite pulsate;
          animation: 1.5s ease-out 0s infinite pulsate;
}

.fab__pulse .pulse-2 {
  height: 64px;
  width: 64px;
  border-width: 2px;
  -webkit-animation: 1.5s ease-out 0s infinite pulsate;
          animation: 1.5s ease-out 0s infinite pulsate;
}

.fab__pulse .pulse-3 {
  height: 74px;
  width: 74px;
  border-width: 1px;
  -webkit-animation: 1.5s ease-out 0s infinite pulsate;
          animation: 1.5s ease-out 0s infinite pulsate;
}

@-webkit-keyframes pulsate {
  0% {
    transform: scale(1, 1);
    opacity: 0;
  }

  50% {
    opacity: 1;
  }

  100% {
    transform: scale(1.2, 1.2);
    opacity: 0;
  }
}

@keyframes pulsate {
  0% {
    transform: scale(1, 1);
    opacity: 0;
  }

  50% {
    opacity: 1;
  }

  100% {
    transform: scale(1.2, 1.2);
    opacity: 0;
  }
}