Compact four-column Community Applications layout for Unraid 7.3

The recent Community Applications layout uses very large cards, which limits a desktop-width Apps page to three applications across and adds some visually strong hover and status styling.

I put together the following CSS for the Custom WebUI CSS plugin. It provides four compact columns, contained descriptions, much smaller Spotlight branding, neutral status labels, a restrained hover state, and a translucent Recent-date navigator.

Tested on Unraid 7.3.1 using the standard light and Black themes. As this targets Community Applications class names, a future CA update may require adjustments.

Global CSS

/* Community Applications: compact four-column card layout */
.ca_templatesDisplay {
    align-items: stretch !important;
}
.ca_holder.ca_appTemplate {
    position: relative !important;
    width: calc(25% - 14px) !important;
    min-width: 245px !important;
    max-width: none !important;
    height: 250px !important;
    min-height: 250px !important;
    margin: 7px !important;
    padding: 12px !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) 72px !important;
    grid-template-rows: 72px minmax(0, 1fr) 30px !important;
    grid-template-areas:
        "app spotlight"
        "description description"
        "buttons buttons" !important;
    column-gap: 10px !important;
    row-gap: 8px !important;
}
/* App icon, name and repository */
.ca_holder > .ca_appPopup.ca_backgroundClickable {
    grid-area: app !important;
    position: static !important;
    display: grid !important;
    grid-template-columns: 58px minmax(0, 1fr) !important;
    grid-template-rows: auto auto !important;
    column-gap: 10px !important;
    align-content: center !important;
    width: auto !important;
    min-width: 0 !important;
    height: auto !important;
    min-height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
}
.ca_holder .ca_iconArea {
    grid-column: 1 !important;
    grid-row: 1 / span 2 !important;
    position: static !important;
    width: 58px !important;
    height: 58px !important;
    margin: 0 !important;
    padding: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}
.ca_holder .ca_iconArea img,
.ca_holder .ca_iconArea .displayIcon {
    position: static !important;
    width: 52px !important;
    height: 52px !important;
    max-width: 52px !important;
    max-height: 52px !important;
    object-fit: contain !important;
    font-size: 48px !important;
}
.ca_holder .ca_applicationName {
    grid-column: 2 !important;
    grid-row: 1 !important;
    position: static !important;
    align-self: end !important;
    min-width: 0 !important;
    max-width: 100% !important;
    margin: 0 0 2px 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
    white-space: nowrap !important;
    text-overflow: ellipsis !important;
    font-size: 16px !important;
    line-height: 1.15 !important;
    font-weight: 600 !important;
}
.ca_holder .ca_author {
    grid-column: 2 !important;
    grid-row: 2 !important;
    position: static !important;
    align-self: start !important;
    min-width: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
    white-space: nowrap !important;
    text-overflow: ellipsis !important;
    font-size: 10px !important;
    line-height: 1.2 !important;
    opacity: 0.7 !important;
}
/* Monthly Spotlight graphic */
.ca_holder > .homespotlightIconArea {
    grid-area: spotlight !important;
    position: static !important;
    width: 72px !important;
    height: 56px !important;
    margin: 5px 0 0 0 !important;
    padding: 0 !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
}
.ca_holder .homespotlightIconArea > div:first-child {
    width: 64px !important;
    height: 22px !important;
    margin: 0 !important;
    padding: 0 !important;
    line-height: 0 !important;
}
.ca_holder svg.spotlightIcon {
    display: block !important;
    width: 64px !important;
    height: 22px !important;
    max-width: 64px !important;
    max-height: 22px !important;
}
.ca_holder .spotlightDate {
    margin: 3px 0 0 0 !important;
    padding: 0 !important;
    font-size: 9px !important;
    line-height: 11px !important;
}
/* Give Spotlight extra clearance only when a status pill is present */
.ca_holder > .cardFlagStack ~ .homespotlightIconArea {
    margin-top: 18px !important;
}
/* Description */
.ca_holder > .cardDescription {
    grid-area: description !important;
    position: static !important;
    width: auto !important;
    height: auto !important;
    min-height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
}
.ca_holder .cardDesc {
    position: static !important;
    margin: 0 !important;
    padding: 0 !important;
    font-size: 12px !important;
    line-height: 1.35 !important;
    font-weight: 400 !important;
    display: -webkit-box !important;
    -webkit-box-orient: vertical !important;
    -webkit-line-clamp: 5 !important;
    overflow: hidden !important;
}
/* Details, Install and status icons */
.ca_holder > .ca_bottomLine {
    grid-area: buttons !important;
    position: static !important;
    width: auto !important;
    height: 30px !important;
    min-height: 30px !important;
    margin: 0 !important;
    padding: 0 !important;
    display: flex !important;
    align-items: center !important;
    gap: 5px !important;
}
.ca_holder .caButton {
    position: static !important;
    margin: 0 !important;
    padding: 4px 9px !important;
    font-size: 11px !important;
    line-height: 1.2 !important;
}
.ca_holder .ca_bottomLine > span {
    position: static !important;
}
.ca_holder .ca_bottomLine > span:last-child {
    margin-left: auto !important;
}
/* Subtle status pills: official, installed, etc. */
.ca_holder > .cardFlagStack {
    position: absolute !important;
    top: 8px !important;
    right: 8px !important;
    z-index: 3 !important;
}
.cardFlagStack > div {
    min-width: 0 !important;
    height: auto !important;
    margin: 0 !important;
    padding: 0 !important;
    background: #fff !important;
    border: 1px solid rgba(60, 60, 60, 0.35) !important;
    border-radius: 4px !important;
    box-shadow: none !important;
}
.cardFlagStack .installedCardText {
    min-width: 0 !important;
    height: auto !important;
    padding: 4px 7px !important;
    background: transparent !important;
    color: #333 !important;
    text-shadow: none !important;
    font-size: 9px !important;
    font-weight: 600 !important;
    line-height: 1 !important;
    letter-spacing: 0.4px !important;
}
.LTOfficialCardBackground,
.officialCardBackground,
.installedCardBackground {
    background: #fff !important;
    border-color: rgba(60, 60, 60, 0.35) !important;
}
.installedCardBackground {
    border-style: solid !important;
    border-width: 1px !important;
}
/* Keep card hover extremely subtle */
.ca_holder.ca_appTemplate,
.ca_holder.ca_appTemplate:hover,
.ca_holder.ca_appTemplate:focus,
.ca_holder.ca_appTemplate:focus-within {
    transform: none !important;
    filter: none !important;
    outline: none !important;
    box-shadow: none !important;
    transition: none !important;
}
.ca_holder.ca_appTemplate:hover {
    background-color: rgba(0, 0, 0, 0.015) !important;
    border-color: rgba(120, 120, 120, 0.16) !important;
}
.ca_holder:hover .ca_backgroundClickable,
.ca_holder:hover .ca_bottomLine,
.ca_holder:hover .ca_bottomLineSpotLight {
    filter: none !important;
    box-shadow: none !important;
}
/* Recent page date navigation */
#caAlphaBar {
    right: 10px !important;
    padding: 8px 7px !important;
    background: rgba(255, 255, 255, 0.82) !important;
    border: 1px solid rgba(80, 80, 80, 0.16) !important;
    border-radius: 8px !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08) !important;
    backdrop-filter: blur(5px) !important;
    -webkit-backdrop-filter: blur(5px) !important;
}
#caAlphaBar .caAlphaLetter {
    min-width: 34px !important;
    padding: 2px 5px !important;
    color: rgba(35, 35, 35, 0.76) !important;
    font-size: 11px !important;
    line-height: 1.15 !important;
    text-align: center !important;
    border-radius: 4px !important;
}
#caAlphaBar .caAlphaYear {
    color: rgba(25, 25, 25, 0.92) !important;
    font-size: 13px !important;
    font-weight: 600 !important;
}
#caAlphaBar .caAlphaLetter:hover {
    background: rgba(0, 0, 0, 0.05) !important;
}
#caAlphaBar .caAlphaActive {
    background: rgba(245, 110, 35, 0.10) !important;
    color: #d95f20 !important;
}
/* Responsive fallbacks */
@media (max-width: 1250px) {
    .ca_holder.ca_appTemplate {
        width: calc(33.333% - 14px) !important;
    }
}
@media (max-width: 900px) {
    .ca_holder.ca_appTemplate {
        width: calc(50% - 14px) !important;
    }
}
@media (max-width: 620px) {
    .ca_holder.ca_appTemplate {
        width: calc(100% - 14px) !important;
        min-width: 0 !important;
    }
}

Additional CSS for black theme:

/* Status pills for Black Theme */
.cardFlagStack > div,
.LTOfficialCardBackground,
.officialCardBackground,
.installedCardBackground {
    background: #f4f4f4 !important;
    border-color: rgba(255, 255, 255, 0.35) !important;
}
.cardFlagStack .installedCardText {
    color: #222 !important;
}
/* Recent page date navigation: Black Theme */
#caAlphaBar {
    background: rgba(32, 32, 32, 0.84) !important;
    border-color: rgba(255, 255, 255, 0.12) !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.28) !important;
}
#caAlphaBar .caAlphaLetter {
    color: rgba(255, 255, 255, 0.72) !important;
}
#caAlphaBar .caAlphaYear {
    color: rgba(255, 255, 255, 0.92) !important;
}
#caAlphaBar .caAlphaLetter:hover {
    background: rgba(255, 255, 255, 0.07) !important;
}
#caAlphaBar .caAlphaActive {
    background: rgba(245, 110, 35, 0.18) !important;
    color: #ff8b4f !important;
}