:root {
  --color: #f78f1e;
  --color-b: #625AEE;
}

.box {
  box-sizing: border-box;
  padding-bottom: 20%;
  position: fixed;
  display: block;
  z-index: 1;
  width: 200px;
  height: 200px;
  bottom: 36px;
  right: 43px;
  margin: 0;
}

.box--4 .btn {
  display: block;
  position: absolute;
  border-radius: 50%;
  width: 65px;
  height: 65px;
  bottom: 0px;
  right: 0px;
  background-color: #000;
}
.box--4 .box_rotate {
  overflow: hidden;
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.box--4 .box_rotate:before {
  content: "";
  display: block;
  border-radius: 50%;
  width: 170px;
  height: 170px;
  position: absolute;
  bottom: -60px;
  right: -60px;
  box-sizing: border-box;
  border: 30px solid var(--color);
}
.box--4 svg {
  width: 497px;
  height: auto;
  position: absolute;
  bottom: -225px;
  right: -225px;
  -moz-animation: rotate 8s linear infinite;
  -webkit-animation: rotate 8s linear infinite;
  animation: rotate 8s linear infinite;
}
.box--4 text {
  font-size: 12px;
  letter-spacing: 1.15px;
  font-weight: bold;
}

@keyframes rotate {
  0% {
    -moz-transform: rotate(360deg);
    -ms-transform: rotate(360deg);
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
  100% {
    -moz-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }
}