framework/ember/app/styles/flarum/composer.less

// ------------------------------------
// Composer

.composer-container {
	position: fixed;
	bottom: 0;
	left: 0;
	right: 0;
	z-index: @zindex-composer;
	pointer-events: none;
	.transition(left 0.2s);

	.with-pane & {
		left: @index-pane-width;
	}
}
.composer {
	pointer-events: auto;
	margin-left: -20px;
	margin-right: 180px;
	.box-shadow(0 2px 6px rgba(0, 0, 0, 0.25));
	border-radius: @border-radius-base @border-radius-base 0 0;
	background: rgba(255, 255, 255, 0.9);
	transform: translateZ(0); // Fix for Chrome bug where a transparent white background is actually gray
	position: relative;
	height: 300px;
	.transition(~"background 0.2s");

	.index-index & {
		margin-left: 205px;
		margin-right: -20px;
	}
	&.active, &.fullscreen {
		background: #fff;
	}
	&.minimized {
		height: 50px;
		cursor: pointer;
	}
	&.fullscreen {
		position: fixed;
		left: 0;
		top: 0;
		bottom: 0;
		right: 0;
		margin: 0;
		height: auto;
	}
}
.composer-content {
	padding: 20px 20px 15px;

	.minimized & {
		padding: 10px 20px;
	}
	.fullscreen & {
		max-width: 900px;
		margin: 0 auto;
		padding: 30px;
	}
}
.composer-handle {
	height: 20px;
	margin-bottom: -20px;
	position: relative;

	.minimized &, .fullscreen & {
		display: none;
	}
}
.composer-controls {
	position: absolute;
	right: 10px;
	top: 10px;
	list-style-type: none;
	padding: 0;
	margin: 0;

	& li {
		display: inline-block;
	}
	.minimized & {
		top: 7px;
	}
}
.fa-minus.minimize {
	vertical-align: -5px;
}
.composer-avatar {
	float: left;
	.avatar-size(64px);

	.minimized & {
		display: none;
	}
}
.composer-body {
	margin-left: 90px;
	
	& h3 {
		margin: 5px 0 10px;
		&, & input {
			color: @fl-body-muted-color;
			font-size: 16px;
			font-weight: normal;
		}
		& input {
			background: none;
			border: 0;
			padding: 0;
			height: auto;
		}
	}

	.minimized & {
		margin-left: 0;
	}
}
.composer-editor {
	.minimized & {
		visibility: hidden;
	}
}
.text-editor {
	& textarea {
		border-radius: 0;
		padding: 0;
		border: 0;
		resize: none;
		color: @fl-body-color;
		font-size: 14px;
		line-height: 1.6;

		&, &:focus, &[disabled] {
			background: none;
		}
	}
}
.text-editor-controls {
	margin: 10px 0 0;
	padding: 0;
	list-style-type: none;
	& li {
		display: inline-block;
	}
}

.composer-loading {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: rgba(255, 255, 255, 0.9);
	opacity: 0;
	pointer-events: none;
	border-radius: @border-radius-base @border-radius-base 0 0;
	.transition(opacity 0.2s);

	&.active {
		opacity: 1;
		pointer-events: auto;
	}
}