Animation CSS : effet de cercle de chargement

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Animation CSS : effet de cercle de chargement

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Un code de Mete

HTML

CSS

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

body {
      background:url("./thumb.jpg") no-repeat center center;
      background-color: black;
      background-size: cover;
      display: flex;
      align-items: center;
      justify-content: center;
      height: 100vh;
      overflow: hidden;
    }

.codigo {
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      background: #272822;
      color: #F8F8F2;
      font-family: 'Consolas', 'Monaco', monospace;
      font-size: 18px;
      padding: 20px;
      border-radius: 8px;
      white-space: pre-line;
      text-align: left;
      line-height: 1.6;
      max-height: 25%;
      max-width: 75%;
      width: 75%;
      height: 25%;
      top:15%;
      overflow-y: hidden;
      box-shadow: -8px 10px 18px rgba(0, 0, 0, 0.55);
    }

.selector       { color: #F92672; }
    .property       { color: #66D9EF; }
    .value-number   { color: #AE81FF; }
    .value-string   { color: #E6DB74; }
    .value-color    { color: #A6E22E; }
    .function       { color: #A6E22E; }

.animation-container {
      position: absolute;
      top: 75%;
      left: 50%;
      transform: translate(-50%, -50%);
      display: flex;
      align-items: center;
      justify-content: center;
      width: 100%;
      height: 50%;
      overflow: hidden;
      background: transparent;
    }

.loading-element {
      width: 20%;
      height: 30%;
      background-color: #4f5b64;
      border-radius: 50%;
      position: relative;
      animation: loading-animation 1s linear infinite;
    }

@keyframes loading-animation {
      0% { 
        transform: scale(0.2);
        opacity: 0;
        background-color: #8f9f2f;
        border-radius: 20px;
        width: 80%;
        height: 20%;
      }
      20% { 
        transform: scale(0.5);
        opacity: 0.5;
        background-color: #3f9d4b;
        border-radius: 40px;
        width: 50%;
        height: 30%;
      }
      40% { 
        transform: scale(1);
        opacity: 1;
        background-color: #7f6e8f;
        border-radius: 20px;
        width: 80%;
        height: 20%;
      }
      60% { 
        transform: scale(1.5);
        opacity: 0.5;
        background-color: #9f0d5f;
        border-radius: 20px;
        width: 80%;
        height: 20%;
      }
      80% { 
        transform: scale(2);
        opacity: 0;
        background-color: #1b0f7d;
        border-radius: 50%;
        width: 10%;
        height: 30%;
      }
      100% { 
        transform: scale(0.2);
        opacity: 0;
        background-color: #8f9f2f;
        border-radius: 20px;
        width: 80%;
        height: 20%;
      }
    }

/* A animação é criada com a sensação de desorientação e confusão,
       refletindo a sensação de frustração quando estamos com dificuldade para resolver um problema */
    .circle1 {
      position: absolute;
      top: 55%;
      left: 0%;
      transform: translate(-50%, -50%);
      background: #4f5b64;
      width: 80%;
      height: 20%;
      border-radius: 20px;
      animation: circle-animation 1s linear infinite;
    }

@keyframes circle-animation {
      0% {
        transform: scale(0.5);
        opacity: 0;
        background-color: #8f9f2f;
        border-radius: 40px;
      }
      20% {
        transform: scale(1);
        opacity: 0.5;
        background-color: #3f9d4b;
        border-radius: 20px;
      }
      40% {
        transform: scale(1.2);
        opacity: 0;
        background-color: #7f6e8f;
        border-radius: 40px;
      }
      60% {
        transform: scale(0.8);
        opacity: 0.5;
        background-color: #9f0d5f;
        border-radius: 20px;
      }
      80% {
        transform: scale(0.5);
        opacity: 0;
        background-color: #1b0f7d;
        border-radius: 50%;
      }
      100% {
        transform: scale(0.2);
        opacity: 0;
        background-color: #8f9f2f;
        border-radius: 20px;
      }
    }

/* A animação é criada com a sensação de confusão e desorientação,
       refletindo a sensação de confusão quando estamos com dificuldade para resolver um problema */
    .circle2 {
      position: absolute;
      top: 70%;
      left: 20%;
      transform: translate(-50%, -50%);
      background: #4f5b64;
      width: 60%;
      height: 30%;
      border-radius: 50%;
      animation: circle2-animation 1s linear infinite;
    }

@keyframes circle2-animation {
      0% {
        transform: scale(0.2);
        opacity: 0;
        background-color: #8f9f2f;
        border-radius: 20px;
      }
      20% {
        transform: scale(0.5);
        opacity: 0.5;
        background-color: #3f9d4b;
        border-radius: 40px;
      }
      40% {
        transform: scale(1);
        opacity: 0;
        background-color: #7f6e8f;
        border-radius: 20px;
      }
      60% {
        transform: scale(1.2);
        opacity: 0.5;
        background-color: #9f0d5f;
        border-radius: 40px;
      }
      80% {
        transform: scale(0.8);
        opacity: 0;
        background-color: #1b0f7d;
        border-radius: 50%;
      }
      100% {
        transform: scale(0.2);
        opacity: 0;
        background-color: #8f9f2f;
        border-radius: 20px;
      }
    }

.codigo::before::after {
      content: '';
      position: absolute;
      top: 70%;
      left: 50%;
      transform: translate(-50%, -50%);
      background: linear-gradient(#7f6e8f, #9f0d5f);
      border-radius: 40px;
      width: 80%;
      height: 20%;
    }

/* A animação é criada com a sensação de libertação e liberdade,
       refletindo a sensação de liberdade quando finalmente resolvido um problema */
    .final-element {
      position: absolute;
      top: 90%;
      left: 50%;
      transform: translate(-50%, -50%);
      background: #4f5b64;
      width: 100%;
      height: 10%;
      border-radius: 50%;
      animation: final-animation 1s linear infinite;
    }

@keyframes final-animation {
      0% {
        transform: scale(1);
        opacity: 0;
        background-color: #8f9f2f;
        border-radius: 20px;
      }
      20% {
        transform: scale(1.5);
        opacity: 0.5;
        background-color: #3f9d4b;
        border-radius: 40px;
      }
      40% {
        transform: scale(2);
        opacity: 0;
        background-color: #7f6e8f;
        border-radius: 20px;
      }
      60% {
        transform: scale(1.5);
        opacity: 0.5;
        background-color: #9f0d5f;
        border-radius: 40px;
      }
      80% {
        transform: scale(1);
        opacity: 0;
        background-color: #1b0f7d;
        border-radius: 50%;
      }
      100% {
        transform: scale(1);
        opacity: 0;
        background-color: #8f9f2f;
        border-radius: 20px;
      }
    }