SCP基金会

:root {
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}
#header::before {
    content: "";
    background-image: linear-gradient(to bottom, transparent 85%, rgb(46, 46, 46) 100%), var(--header-anime-img);
    background-position: 0 0;
    background-repeat: repeat;
    position: absolute;
    display: block;
    width: 100%;
    height: 100%;
    animation: thunder 10s ease-in infinite both;
}
@keyframes thunder {
    0% { background-color: transparent; }
    1% { background-color: rgb(var(--UI-light-color-primary), 0.75); }
    1.5% { background-color: transparent; }
    2% { background-color: rgb(var(--UI-light-color-primary), 0.75); }
    3% { background-color: rgb(var(--UI-light-color-primary), 0.75); }
    4% { background-color: transparent; }
    40% { background-color: transparent; }
    41% { background-color: rgb(var(--UI-light-color-primary), 0.75); }
    41.5% { background-color: transparent; }
    42% { background-color: rgb(var(--UI-light-color-primary)); }
    43% { background-color: rgb(var(--UI-light-color-primary), 0.75);}
    44% { background-color: transparent; }
    100% { background-color: transparent; }
}
#header h1 a::before,
#header h1 a span::before,
#header h1 a span::after {
    animation: header-anime 5s ease-in-out;
}
#header h1 a span:: before {
    animation-delay: 125ms;
}
#header h1 a span:: after {
    animation-delay: 250ms;
}
@keyframes header-anime {
    0% { opacity: 0; }
    62.5% { margin-left: -50px; opacity: 0; }
    75% { margin-left: 0; opacity: 1; }
    100% { opacity: 1; }
}