LESS code for cleaning up link chooser dialog in DNN.

dnn_overrides.less

.ui-dialog {
	* {
		box-sizing: content-box;
	}
	.ui-dialog-titlebar {
		border-bottom: none;
	}
	.page {
		width: 100% !important;
	}
	.ui-dialog-titlebar-close {
		box-sizing: border-box;
	}
	.dt-container {
		width: 100% !important;
		height: 274px !important;
		box-sizing: border-box;
	}
	.dt-content {
		height: 200px !important;
	}
	.search-input {
		font-size: 16px;
	}
}