html { font-size:100%; } 

.calc-ui section{
    position: absolute;
    display: table;
    width: 50%;
    height: 25%; 
    
    animation: fadein 2.5s;
    -moz-animation: fadein 2.5s; /* Firefox */
    -webkit-animation: fadein 2.5s; /* Safari and Chrome */
    -o-animation: fadein 2.5s; /* Opera */
}

.calc-ui section#screen {
    top: 0;
    left: 0;
    background:rgba(0, 0, 0,0.8);
	height:25%;
	width:100%;
	text-align:right;
	
}
.calc-ui section#screen total{
	position:absolute;
	font-size:4em;
	top:0;
	right:0;
	height:80%;
	width:100%;
	border-bottom:1px solid #222;
	overflow:hidden;
}.calc-ui section#screen detail{
	position:absolute;
	font-size:1em;
	top:80%;
	right:0;
	height:20%;
	width:100%;
	color:#999;
	overflow:hidden;
}

.calc-ui section#screen inner:before {
  content: ' ';
  display: inline-block;
  vertical-align: middle;
  height:100%;
}

.calc-ui section.buttons {
    top: 25%;
    left: 0;
	height:75%;
	width:100%;
	display:table;
    background:rgba(0,0,0,0.7);
}

.calc-ui section.buttons wrapper{
	height:20%;
	width:25%;
	position:absolute;
	
    text-align: center;
	font-size:2em;
	
	}

.calc-ui section.buttons #r1c1 {
	top:0;
	left:0;
	background:rgba(255, 255, 255,0.05);
	border-right:1px solid #000;
	border-bottom:1px solid #000;
}
.calc-ui section.buttons #r1c2 {
	top:0;
	left:25%;
	background:rgba(255, 255, 255,0.05);
	border-right:1px solid #000;
	border-bottom:1px solid #000;
}
.calc-ui section.buttons #r1c3 {
	top:0;
	left:50%;
	background:rgba(255, 255, 255,0.05);
	border-right:1px solid #000;
	border-bottom:1px solid #000;
}
.calc-ui section.buttons #r1c4 {
	top:0;
	left:75%;
	background:rgba(255, 255, 255,0.05);
	border-bottom:1px solid #000;
}

.calc-ui section.buttons #r2c1 {
	top:20%;
	left:0;
	background:rgba(255, 255, 255,0.1);
	border-right:1px solid #000;
	border-bottom:1px solid #000;
}
.calc-ui section.buttons #r2c2 {
	top:20%;
	left:25%;
	background:rgba(255, 255, 255,0.1);
	border-right:1px solid #000;
	border-bottom:1px solid #000;
}
.calc-ui section.buttons #r2c3 {
	top:20%;
	left:50%;
	background:rgba(255, 255, 255,0.1);
	border-right:1px solid #000;
	border-bottom:1px solid #000;
}
.calc-ui section.buttons #r2c4 {
	top:20%;
	left:75%;
	background:rgba(255, 255, 255,0.05);
	border-bottom:1px solid #000;
}


.calc-ui section.buttons #r3c1 {
	top:40%;
	left:0;
	background:rgba(255, 255, 255,0.1);
	border-right:1px solid #000;
	border-bottom:1px solid #000;
}
.calc-ui section.buttons #r3c2 {
	top:40%;
	left:25%;
	background:rgba(255, 255, 255,0.1);
	border-right:1px solid #000;
	border-bottom:1px solid #000;
}
.calc-ui section.buttons #r3c3 {
	top:40%;
	left:50%;
	background:rgba(255, 255, 255,0.1);
	border-right:1px solid #000;
	border-bottom:1px solid #000;
}
.calc-ui section.buttons #r3c4 {
	top:40%;
	left:75%;
	background:rgba(255, 255, 255,0.05);
	border-bottom:1px solid #000;
}

.calc-ui section.buttons #r4c1 {
	top:60%;
	left:0;
	background:rgba(255, 255, 255,0.1);
	border-right:1px solid #000;
	border-bottom:1px solid #000;
}
.calc-ui section.buttons #r4c2 {
	top:60%;
	left:25%;
	background:rgba(255, 255, 255,0.1);
	border-right:1px solid #000;
	border-bottom:1px solid #000;
}
.calc-ui section.buttons #r4c3 {
	top:60%;
	left:50%;
	background:rgba(255, 255, 255,0.1);
	border-right:1px solid #000;
	border-bottom:1px solid #000;
}
.calc-ui section.buttons #r4c4 {
	top:60%;
	left:75%;
	background:rgba(255, 255, 255,0.05);
	border-bottom:1px solid #000;
}

.calc-ui section.buttons #r5c1 {
	top:80%;
	left:0;
	width:50%;
	background:rgba(255, 255, 255,0.1);
	border-right:1px solid #000;
}
.calc-ui section.buttons #r5c2 {
	/*
	top:80%;
	left:25%;
	background:rgba(255, 255, 255,0.1);
	border-right:1px solid #000;
	*/
}
.calc-ui section.buttons #r5c3 {
	top:80%;
	left:50%;
	background:rgba(255, 255, 255,0.1);
	border-right:1px solid #000;
}
.calc-ui section.buttons #r5c4 {
	top:80%;
	left:75%;
	background:rgba(255,78,0,1);
	font-weight:400;
}

.calc-ui section.buttons inner:before {
  content: ' ';
  display: inline-block;
  vertical-align: middle;
  height: 100%;
}

.calc-ui section.buttons inner{
	}