web/src-web/src/theme/theme-base/components/panel/_tabview.scss
.p-tabview {
    .p-tabview-nav {
        background: $tabviewNavBg;
        border: $tabviewNavBorder;
        border-width: $tabviewNavBorderWidth;

        li {
            margin-right: $tabviewHeaderSpacing;

            .p-tabview-nav-link {
                border: $tabviewHeaderBorder;
                border-width: $tabviewHeaderBorderWidth;
                border-color: $tabviewHeaderBorderColor;
                background: $tabviewHeaderBg;
                color: $tabviewHeaderTextColor;
                padding: $tabviewHeaderPadding;
                font-weight: $tabviewHeaderFontWeight;
                border-top-right-radius: $borderRadius;
                border-top-left-radius: $borderRadius;
                transition: $listItemTransition;
                margin: $tabviewHeaderMargin;

                &:not(.p-disabled):focus {
                    @include focused-inset();
                }
            }

            &:not(.p-highlight):not(.p-disabled):hover {
                .p-tabview-nav-link {
                    background: $tabviewHeaderHoverBg;
                    border-color: $tabviewHeaderHoverBorderColor;
                    color: $tabviewHeaderTextHoverColor;
                }
            }

            &.p-highlight {
                .p-tabview-nav-link {
                    background: $tabviewHeaderActiveBg;
                    border-color: $tabviewHeaderActiveBorderColor;
                    color: $tabviewHeaderTextActiveColor;
                }
            }
        }
    }

    .p-tabview-close {
        margin-left: $inlineSpacing;
    }
    
    .p-tabview-nav-btn.p-link {
        background: $tabviewHeaderActiveBg;
        color: $tabviewHeaderTextActiveColor;
        width: $buttonIconOnlyWidth;
        box-shadow: $raisedButtonShadow;
        border-radius: 0;

        &:focus {
            @include focused-inset();
        }
    }

    .p-tabview-panels {
        background: $tabviewContentBg;
        padding: $tabviewContentPadding;
        border: $tabviewContentBorder;
        color: $tabviewContentTextColor;
        border-bottom-right-radius: $borderRadius;
        border-bottom-left-radius: $borderRadius;
    }
}
