html, body {
	height: 100%;
}
textarea {
	width: 100%;
	min-height: 250px;
	box-sizing: border-box;
	height: calc( 100% - 45px );
}
.buttons {
	padding-top: 10px;
	text-align: right;
}
body > .mce-container {
	box-sizing: border-box;
}