.ui-keyboard-button {
    border: 1px solid #aaa;
    padding: 0 0.5em;
    margin: 1px;
    min-width: 3em;
    height: 3em;
    line-height: 3em;
    vertical-align: top;
    font-family: Helvetica, Arial, sans-serif;
    color: #333;
    text-align: center;
    border-radius: 5px;
    -webkit-box-shadow: 1px 1px 3px 0 rgba(0, 0, 0, 0.5);
    box-shadow: 1px 1px 3px 0 rgba(0, 0, 0, 0.5);
    background: white;
    background-image: -webkit-linear-gradient(-90deg, white 0%, #e3e3e3 100%);
    background-image:         linear-gradient(-90deg, white 0%, #e3e3e3 100%);
    cursor: pointer;
    overflow: hidden;
    -moz-user-focus: ignore;
}

.ui-keyboard {
    /* adjust overall keyboard size using "font-size" */
    font-size: 28px; /* increase button size for small screen */
    text-align: center;
    background: #fefefe;
    border: 1px solid #aaa;
    padding: 4px;

    /* include the following setting to place the
    keyboard at the bottom of the browser window */
		width: 100%;
		height: auto;
		bottom: 0px;
    left: 0px;
    top: auto;
    position: fixed;
    /*position: absolute;*/
    white-space: nowrap;
    overflow-x: auto;
    /* see issue #484 */
    -ms-touch-action: manipulation;
    touch-action: manipulation;
}

.ui-keyboard-has-focus {
	z-index: 16001;
}

span.input-group-btn {
	position: absolute;
	display: inline-block;
	cursor: pointer;
	z-index: 2;
}

span.input-group-append {
  position: absolute;
  display: inline-block;
  cursor: pointer;
  z-index: 2;
}