.pf4-chevron{font-size: 0;width: 16px;height: 16px;position: relative;transition: transform 0.2s}.pf4-chevron::before{content: "";position: absolute;left: 4px;top: 2px;width: 7px;height: 7px;border-right: 1.6px solid currentColor;border-bottom: 1.6px solid currentColor;transform: rotate(45deg)}.pf4-open .pf4-chevron{transform: rotate(180deg)}