/**
 * Dimensions of an A4 paper.
 */
.ch-paper-a4 {
    width: 21.0cm;
    height: 29.7cm;
}

/**
 * Default padding for A4 paper.
 * NOTE: In paper terminology, padding is called "margin".
 */
.ch-paper-a4-padding {
    padding: 2.5cm;
}

/**
 * Dimensions of a US Letter paper.
 */
.ch-paper-us-letter {
    width: 8.5in;
    height: 11in;
}

/**
 * Default padding for US Letter paper.
 * NOTE: In paper terminology, padding is called "margin".
 */
.ch-paper-us-letter-padding {
    padding: 1in;
}

/**
 * 
 */
.ch-paper-us-letter-padding-half {
    padding: 0.5in;
}