.button
{
	background-color: #000;
	color: #fff;
	padding: 15px 15px;
	text-align: center;
	display: inline-block;
	width: 15%;
	height: 8%;
	font-size: 16px;
	margin: 4px 2px;
	cursor: pointer;
}
.button_reset
{
	background-color: #FFF;
	color: #000;
	padding: 15px 15px;
	width: 15%;
	height: 8%;
	display: inline-block;
	font-size: 16px;
	margin: 4px 2px;
	cursor: pointer;	
}
.button_equal
{
	background-color: #fff;
	color: #000;
	padding: 15px 15px;
	text-align: center;
	display: inline-block;
	width: 15%;
	height: 8%;
	font-size: 16px;
	margin: 4px 2px;
	cursor: pointer;	
}
.button_function
{
	background-color: #808080;
	color: #FFF;
	padding: 15px 15px;
	text-align: center;
	width: 15%;
	height: 8%;
	display: inline-block;
	font-size: 16px;
	margin: 4px 2px;
	cursor: pointer;	
}
body
{
	margin-left: -15px;
	width: 400px;
	position: fixed;
	display: inline-table;
}
.display
{
background-color:#222;
width:60%;
color: #FFF;
left:15px;
top:20px;

height:40px;
}
.base{
	background-color:#A52A2A;

}
* {
   outline: 0px solid  !important;
}

* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    -ms-box-sizing: border-box;
    box-sizing: border-box;
}