overleaf/services/web/public/stylesheets/app/editor.less

.toolbar {
	height: 40px;
	border-bottom: 1px solid @toolbar-border-color;

	a {
		display: inline-block;
		color: @gray-light;
		padding: 6px 12px 8px;
		&:hover {
			text-shadow: 0 1px 0 rgba(0, 0, 0, 0.25);
			color: @gray-dark;
		}
	}

	.btn-full-height {
		border: none;
		border-radius: 0;
		border-right: 1px solid @toolbar-border-color;
		color: @link-color;
		padding: 6px 12px 8px;
		&:hover {
			text-shadow: 0 1px 0 rgba(0, 0, 0, 0.15);
			background-color: darken(white, 10%);
			color: @link-hover-color;
		}
	}

	.toolbar-right {
		float: right;
		.btn-full-height {
			border-right: 0;
			border-left: 1px solid @toolbar-border-color;
		}
	}

	&.toolbar-header {
		box-shadow: 0 0 2px #ccc;
		position: absolute;
		top: 0;
		left: 0;
		right: 0;
		z-index: 1;
	}

	&.toolbar-small {
		height: 32px;
		a {
			padding: 4px 2px 2px;
			margin-left: 6px;
		}
		.toolbar-right {
			a {
				margin-left: 0;
				margin-right: 6px;
			}
		}
	}
}

#editor-content {
	position: absolute;
	top: 40px;
	bottom: 0;
	left: 0;
	right: 0;
}

#file-tree {
	background-color: #fafafa;
	border-right: 1px solid @toolbar-border-color;

	ul.file-tree-list {
		font-size: 0.8rem;
		margin-top: (@line-height-computed / 4);

		ul {
			margin-left: (@line-height-computed / 2);
		}

		li {
			line-height: 2.6;

			.entity-name {
				color: @gray-dark;
				cursor: pointer;
				white-space: nowrap;
				overflow: hidden;
				text-overflow: ellipsis;
				&:hover {
					background-color: @gray-lightest;
				}
			}

			i.fa-folder-open, i.fa-folder {
				color: lighten(desaturate(@link-color, 10%), 5%);
				font-size: 14px;
			}

			i.fa-file, i.fa-image {
				color: @gray-light;
				font-size: 14px;
			}

			i.toggle {
				width: 24px;
				padding: 6px;
				font-size: 0.7rem;
				color: @gray
			}

			&.selected {
				> .entity > .entity-name {
					color: @link-color;
					border-right: 4px solid @link-color;
					font-weight: bold;
					i.fa-folder-open, i.fa-folder, i.fa-file, i.fa-image {
						color: @link-color;
					}
				}
			}
		}
	}
}

.ui-layout-resizer {
	width: 6px;
	background-color: #f4f4f4;
	.ui-layout-toggler {
		color: #999;
		font-family: FontAwesome;
		font-style: normal;
		font-weight: normal;
		line-height: 1;
		-webkit-font-smoothing: antialiased;
		-moz-osx-font-smoothing: grayscale;
		font-size: 16px !important;
		line-height: 50px;
		&:hover {
			background-color: #ddd;
			color: #333;
		}
	}
}
.ui-layout-resizer-west.ui-layout-resizer-open, .ui-layout-resizer-east.ui-layout-resizer-closed {
	.ui-layout-toggler {
		&:before {
			content: "\f104"
		}
	}
}
.ui-layout-resizer-east.ui-layout-resizer-open, .ui-layout-resizer-west.ui-layout-resizer-closed {
	.ui-layout-toggler {
		&:before {
			content: "\f105"
		}
	}
}
.ui-layout-resizer-dragging {
	background-color: #ddd;
}