minio/browser/app/less/inc/sidebar.less

// Base
.sidebar {
	max-width: @sidebar-width;
	background-color: @sidebar-bg;
	position: fixed;
	height: 100%;
	z-index: @sidebar-z-index;
	left: 0;
	top: 0;
	.transition(transform);
	.transition-duration(200ms);

	@media (min-width: @screen-md-min) {
        width: 100%;

		&.sidebar--toggled {
			.translate3d((-@sidebar-width - 15px), 0, 0);
		}
	}

	@media (max-width: @screen-sm-max) {
        width: 85%;
		box-shadow: 0 0 1.3rem rgba(0, 0, 0, 0.1);
		.translate3d((-@sidebar-width - 1rem), 0, 0);

		&.sidebar--toggled {
			.translate3d(0, 0, 0);
		}
	}
}

.sidebar__inner {
    display: flex;
    flex-direction: column;
    height: 100%;
    z-index: 1;
}

// Logo
.logo {
	padding: @sidebar-padding;
	display: flex;
    flex-shrink: 0;
	align-items: flex-start;
    margin-bottom: 1.15rem;
}

.logo__img {
    height: 4rem;
    margin: -0.6rem 0.55rem 0 -0.75rem;
}

.logo__title {
	& > h2 {
		font-weight: @font-weight-normal;
		line-height: 100%;
		font-size: 1.33rem;
		margin: 0;
	}

	& > small {
		display: block;
		margin-top: 0.33rem;
		padding-left: 1px;
        color: @text-muted-color;
        font-size: @font-size-small;
        max-width: @sidebar-width - 80;
        .text-overflow();
    }
}


// Buckets
.buckets {
    flex: 1 1 auto;
    overflow: auto;
    flex-shrink: 0;
}

.buckets__search {
    padding: 0 @sidebar-padding;
    margin-bottom: 1rem;
}

.buckets__list {
    height: calc(~"100vh - 246px");
    overflow: auto;
}

.buckets__item {
    padding: 0.8rem @sidebar-padding 0.8rem @sidebar-padding*2.2;
    background: url(../../img/icons/bucket.svg) no-repeat left 2.2rem center;
    position: relative;
    cursor: pointer;

    & > a {
        &, &:focus, &:hover {
            color: @headings-color;
        }
    }

    &:hover {
        .buckets__item__actions {
            display: block;
        }
    }
}

.buckets__item--active {
    &:after {
        content: '';
        height: 100%;
        width: 100%;
        #gradient > .horizontal(#f3f3f3; @white);
        position: absolute;
        left: 0;
        top: 0;
        z-index: -1;
    }
}

.buckets__item__actions {
    position: absolute !important;
    top: 0.5rem;
    right: 0.5rem;
    .transition(opacity);
    .transition-duration(300ms);

    &:not(.open) {
        display: none;
    }

    &:hover {
        opacity: 1;
    }
}


// Backdrop for mobile
@media(min-width: @screen-md-min) {
    .sidebar-backdrop {
        display: none;
    }
}

@media(max-width: @screen-sm-max) {
    .sidebar-backdrop {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        z-index: @sidebar-z-index - 1;
        cursor: pointer;
    }

    .sidebar--toggled {
        & + .content {
            .sidebar-backdrop {
                display: block;
            }
        }
    }
}