加载动画

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html

css

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html

css

body {
  display: grid;
  place-items: center;
  height: 100vh;
  margin: 0;
  background: #0f0514;
  font-family: monospace;
}

.loader {
  font-size: 25vmin;
  width: 1em;
  height: 1em;
  background-color: #21346e;
  border-radius: 1em;
  position: relative;
}
.loader::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 0.1rem solid #21346e;
  border-radius: inherit;
}
.loader.loaded::after {
  opacity: 0;
  border-color: #3d7af5;
  transform: scale(1.6);
  transition: opacity 0.6s ease, transform 0.6s ease-out;
}
.loader .meter {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  overflow: hidden;
}
.loader .meter .fill {
  background-color: #3d7af5;
  width: 100%;
  height: 0%;
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 10;
  transform: translateY(1.5vh);
  filter: drop-shadow(0 0 1rem black);
  transition: height 0.2s linear;
}
.loader .meter .fill svg {
  color: #3d7af5;
  position: absolute;
  transform: translateY(calc(-100% + 1px));
  width: 200%;
  animation: waves 4s ease-in-out infinite alternate;
}
@keyframes waves {
  0% {
    left: -10%;
    top: 2vh;
  }
  50% {
    top: 0vh;
  }
  100% {
    left: -60%;
    top: 1vh;
  }
}
.loader .meter .fill-text {
  position: absolute;
  z-index: 15;
  top: 50%;
  left: 50%;
  font-size: 1rem;
  transform: translate(-50%, -50%);
  color: rgba(15, 5, 20, 0.9);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 900;
  pointer-events: none;
}
.loader .ball {
  position: absolute;
  background-color: #21346e;
  top: 50%;
  left: 0;
  border-radius: inherit;
}
.loader .ball.a {
  width: 0.25em;
  height: 0.25em;
  transform-origin: 1.5em;
  animation: rotate-a 4s linear infinite;
}
.loader .ball.b {
  width: 0.3em;
  height: 0.3em;
  transform-origin: 1em;
  animation: rotate-b 7s linear reverse infinite;
}
@keyframes rotate-a {
  from {
    transform: translate(-1em, -50%) rotate(0deg);
  }
  to {
    transform: translate(-1em, -50%) rotate(360deg);
  }
}
@keyframes rotate-b {
  from {
    transform: translate(-0.5em, -50%) rotate(0deg);
  }
  to {
    transform: translate(-0.5em, -50%) rotate(360deg);
  }
}
.reload-button {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  border: 0;
  background-color: #21346e;
  font-family: monospace;
  color: rgba(15, 5, 20, 0.9);
  border-radius: 8px;
  padding: 1rem 2rem;
  box-shadow: 0 0 1rem 0.25rem rgba(0, 0, 0, 0.5);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  outline: none;
  font-weight: 900;
}
.reload-button:hover {
  background-color: #3d7af5;
  cursor: pointer;
  box-shadow: 0 0 0.5rem 0.125rem rgba(0, 0, 0, 0.5);
}
.reload-button:active {
  transform: translateY(0.5em);
}

.signature {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
}
.signature a {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: #ffffff;
  font-family: monospace;
}
.signature img {
  height: 2rem;
  width: 2rem;
  margin-left: 1em;
  border-radius: 2rem;
}

JavaScript

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