nav {font-size: 12px;font-family: -apple-system, BlinkMacSystemFont,"Segoe UI", "Roboto", "Oxygen","Ubuntu", "Cantarell", "Fira Sans","Droid Sans", "Helvetica Neue", sans-serif;height: 28px;line-height: 28px;vertical-align: middle;color: #9B9B9B;cursor: default;user-select: none;}.single {text-align: center;color: #fff;}.tabs {border-bottom: 1px solid #333;max-height: 28px;display: flex;flex-flow: row;}.tabs li:first-child {margin-left: 70px;}.tabs li {list-style-type: none;flex-grow: 1;text-align: center;}.tabs li.is_active {color: #fff;position: relative;}.tabs li span {display: block;border-left: 1px solid transparent;border-right: 1px solid transparent;}.tabs li.is_active span {border-left-color: #333;border-right-color: #333;}.tabs li.is_active:last-child span {border-right-color: transparent;}.tabs li.is_active::before {position: absolute;content: ' ';border-bottom: 1px solid #000;display: block;left: 1px;right: 1px;bottom: -1px;}.tabs li:not(.is_active):hover {color: #ccc;}.tabs li.has_activity, .tabs li.has_activity:hover {color: #50E3C2;}