<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">

&lt;style&gt; 
 .opening {
    width: 100px;
    height: 100px;
    background: white;
    -webkit-animation: changecolor 15s; /* Chrome, Safari, Opera */
    animation: changecolor 10s;
}

/* Chrome, Safari, Opera */
@-webkit-keyframes changecolor {
    from {background: #701028;}
    to {background: white;}
}

/* Standard syntax */
@keyframes changecolor {
    from {background: #b01030;}
    to {background: white;}
}
&lt;/style&gt;


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