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:root{scroll-behavior:smooth}
@media(max-width:720px){.sidebar{flex-wrap:wrap}.sidebar .history{display:flex;gap:6px;max-width:100%;flex:0 0 100%;max-height:82px;overflow:auto}.sidebar .history button,.sidebar .history button:not(.selected){display:block;min-width:170px;max-width:210px;padding:9px 10px}.sidebar .history:empty{display:none}}