gnu-social/public/components/Collection/assets/css/pages.css

.collection-add,.collections-list {
    padding: 10px 12px;
}

.collection-add > form > div {
    display: flex;
    align-items: flex-end;
}

.collection-add > form > div .mb-6 {
    margin-right: 12px;
}

.collection-add > form > div button {
    margin-top: 0;
    margin-bottom: var(--s);
}

@media only screen and (max-width:465px) {
    .collection-add > form,.collection-add > form > div .mb-6 {
        width: 100%;
        margin: 0;
    }

    .collection-add > form > div {
        flex-direction: column;
    }

    .collection-add > form > div button {
        margin-top: var(--s);
        margin-bottom: 0;
    }
}

:root {
    --collections-list-quantity: 3;
}

@media only screen and (min-width:1281px) {
    :root {
        --collections-list-quantity: 3;
    }
}

@media only screen and (max-width:1280px) {
    :root {
        --collections-list-quantity: 4;
    }
}

@media only screen and (max-width:900px) {
    :root {
        --collections-list-quantity: 3;
    }
}

@media only screen and (max-width:700px) {
    :root {
        --collections-list-quantity: 2;
    }
}

@media only screen and (max-width:465px) {
    :root {
        --collections-list-quantity: 1;
    }
}

.collections-list {
    display: grid!important;
    grid-gap: 12px;
    grid-template-columns: repeat(var(--collections-list-quantity),1fr);
}

.collections-list h3,.collections-list h2,.collections-list h1 {
    grid-column-start: 1;
    grid-column-end: calc(var(--collections-list-quantity) + 1);
}

.collections-list .collection-item {
    border: 2px solid var(--border);
    border-radius: var(--s);
    padding: 10px 20px;
    display: flex;
    flex-direction: column;
    position: relative;
}

.collections-list .collection-item .name {
    margin-right: auto;
    flex-grow: 1;
    flex-shrink: 1;
    word-break: break-word;
    margin-right: 60px;
}

.collections-list .collection-item summary {
    position: absolute;
    top: 10px;
    right: 50px;
    width: 16px;
}

.collections-list .collection-item details + details > summary {
    right: 20px;
}

.collections-list .collection-item details {
    margin-top: 12px;
}

.collections-list .collection-item svg {
    fill: var(--foreground);
}

.collections-list .collection-item svg:hover {
    fill: var(--accent);
}

.collections-list .collection-item details label {
    display: none;
}

.collections-list .collection-item details .danger {
    color: #cb2d2d;
}