#scroll {display: none;position: fixed;top: 0;right: 20px;z-index: 500;padding: 3px 8px;background-color: #2187e7;color: #fff;border-radius: 3px;}#scroll:after {content: ” ”;position: absolute;top: 50%;right: -8px;height: 0;width: 0;margin-top: -4px;border: 4px solid transparent;border-left-color: #2187e7;}
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