CSS Room Door Animation HTML Snippet

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.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: 50%;
        width: 100%;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
      }

.selector       { color: #F92672; } .property       { color: #66D9EF; } .value-number   { color: #AE81FF; } .value-string   { color: #E6DB74; } .value-color    { color: #A6E22E; } .brace          { color: #F8F8F2; } .comment        { color: #75715E; } .function       { color: #A6E22E; }
      .animation-container {
        position: absolute;
        top: 75%;
        left: 75%;
        transform: translate(-50%, -50%);
        display: flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        height: 50%;
        overflow: hidden;
      }

.room {
        position: relative;
        width: 200px;
        height: 200px;
        margin: 10px;
        background: linear-gradient(to bottom, #222, #333);
        border-radius: 10px;
        opacity: 0;
        pointer-events: none;
        animation: roomLoop 10s infinite ease-in-out;
      }

.shadow {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.6);
        clip-path: polygon(0 10%, 100% 0%, 100% 100%, 0 90%);
        animation: shadowPulse 5s linear infinite;
      }

.door {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 100px;
        height: 100px;
        background-color: rgba(0, 255, 0, 0.5);
        animation: doorSwing 8s cubic-bezier(0.2, 0.8, 0.8, 1) infinite;
      }

@keyframes roomLoop {
        0% {
          transform: scale(1);
        }
        50% {
          transform: scale(1.1);
        }
        100% {
          transform: scale(1);
        }
      }

@keyframes shadowPulse {
        0% {
          opacity: 1;
        }
        50% {
          opacity: 0.2;
        }
        100% {
          opacity: 1;
        }
      }

@keyframes doorSwing {
        0% {
          transform: rotate(0deg);
        }
        50% {
          transform: rotate(45deg);
        }
        100% {
          transform: rotate(0deg);
        }
      }

.animation-container {
        /* The next lines will take on the added animation as well */
        .room:nth-child(1) {
          animation-delay: 0s;
          /* Your code regarding .room animation */
          /* */
          /* 
          // Example setting the initial state
         /* */
          opacity: 1;
        }

CSS Room Door Animation HTML Snippet

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