body {
	margin: 0;
	padding: 0;
	/*https://www.w3schools.com/csS/css3_gradients.asp*/
	 background: red; /* For browsers that do not support gradients */
  /* For Safari 5.1 to 6.0 */
  background: -webkit-linear-gradient(left,red,orange,yellow,green,blue,indigo,violet);
  /* For Opera 11.1 to 12.0 */
  background: -o-linear-gradient(left,red,orange,yellow,green,blue,indigo,violet);
  /* For Fx 3.6 to 15 */
  background: -moz-linear-gradient(left,red,orange,yellow,green,blue,indigo,violet);
  /* Standard syntax */
  background: linear-gradient(to right, red,orange,yellow,green,blue,indigo,violet); 
}
#taschenrechner {
	border: 1 px solid black;
}
#currentInput, #history {
	font-size: 200%;
	width: 270px;
}

/* http://cssdeck.com/labs/fancy-3d-button */
.key {

	position: relative;
    color: rgba(255,255,255,1);	
    text-decoration: none;
    background-color: rgba(219,87,5,1);
    font-family: 'Yanone Kaffeesatz';
    font-weight: 700;
    font-size: 1.5em;
    display: block;
    padding: 4px;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
    -webkit-box-shadow: 0px 9px 0px rgba(219,31,5,1), 0px 9px 25px rgba(0,0,0,.7);
    -moz-box-shadow: 0px 9px 0px rgba(219,31,5,1), 0px 9px 25px rgba(0,0,0,.7);
    box-shadow: 0px 9px 0px rgba(219,31,5,1), 0px 9px 25px rgba(0,0,0,.7);
    margin: 8px 2px auto;
	width: 50px;
	height: 50px;
	text-align: center;
	
	-webkit-transition: all .1s ease;
	-moz-transition: all .1s ease;
	-ms-transition: all .1s ease;
	-o-transition: all .1s ease;
	transition: all .1s ease;

	/*margin: 0;
	margin-left: 0px;
	margin-right: 0px; */
	float: left;


}

.key:active {
    -webkit-box-shadow: 0px 3px 0px rgba(219,31,5,1), 0px 3px 6px rgba(0,0,0,.9);
    -moz-box-shadow: 0px 3px 0px rgba(219,31,5,1), 0px 3px 6px rgba(0,0,0,.9);
    box-shadow: 0px 3px 0px rgba(219,31,5,1), 0px 3px 6px rgba(0,0,0,.9);
    position: relative;
    top: 6px;
}
