css加载动画

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html

css

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html

css

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

html, body {
  width: 100%;
  height: 100%;
}

body {
  background: #0b0b14;
  font-family: 'Inconsolata', monospace;
  overflow: hidden;
}

.arc {
  position: absolute;
  margin: auto;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border-top: 2px solid #ffea29;
  border-left: 1px solid transparent;
  border-right: 1px solid transparent;
  animation: rt 2s infinite linear;
}
.arc::before {
  position: absolute;
  margin: auto;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  border-top: 2px solid #8d29ff;
  border-left: 1px solid transparent;
  border-right: 1px solid transparent;
  animation: rt 4s infinite linear reverse;
  content: "";
}
.arc::after {
  position: absolute;
  margin: auto;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 0;
  height: 0;
  border-radius: 50%;
  border-top: initial;
  border-left: initial;
  border-right: initial;
  animation: cw 1s infinite;
  content: "";
  background: snow;
}

h1 {
  position: absolute;
  height: 40px;
  margin: auto;
  top: 200px;
  left: 0;
  right: 0;
  bottom: 0;
  text-transform: uppercase;
  text-align: center;
  letter-spacing: 0.1em;
  font-size: 14px;
  font-weight: lighter;
  color: white;
}
h1 span {
  display: none;
}
h1::after {
  animation: txt 5s infinite;
  content: "";
}

@keyframes rt {
  100% {
    transform: rotate(360deg);
  }
}
@keyframes cw {
  0% {
    width: 0;
    height: 0;
  }
  75% {
    width: 40px;
    height: 40px;
  }
  100% {
    width: 0;
    height: 0;
  }
}
@keyframes txt {
  0% {
    content: "LOADING.";
  }
  50% {
    content: "LOADING..";
  }
  100% {
    content: "LOADING...";
  }
}

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