@-webkit-keyframes tweet-enter {
from { background-color: rgba(54, 82, 122, 1); }
80% { background-color: rgba(54, 82, 122, 1); }
to { background-color: rgba(54, 82, 122, 0); }
 }
.js-chirp-container > article {
-webkit-animation-duration: 20s;
-webkit-animation-name: tweet-enter;
 }