.calc-edit{
background:linear-gradient(#eed,#bba);	
border-radius:5px;
box-shadow:inset -2px -2px 2px rgba(255,255,255,0.5),inset 2px 2px 2px rgba(0,0,0,0.5);
color:#333;
}	
.calc-history,.calc-input{
font-family:Courier New, Courier New, monospace;	
font-size:large;	
font-weight:bold;
box-sizing:border-box;
display:block;
margin:8px auto;
padding:8px;
width:100%;
padding-right:16px;
}
.calc-history{
text-align:right;
height:240px;
overflow:auto;
}
.calc-main{
display:block;
padding:16px;
font:bold 15px/28px Arial,Helvetica,sans-serif;
border: 1px solid #888;
border-radius:12px;
background:radial-gradient(#440,#330,#220);
box-shadow: inset -8px -8px 4px rgba(0,0,0,0.4),inset 8px 8px 4px rgba(255,255,255,0.4),8px 8px 4px rgba(0,0,0,0.4);
}
.calc-button{	
cursor:pointer;
width:50px;
height:28px;
color:#eee;	
margin:5px 4px;
border:1px solid black;
box-shadow:0 1px rgba(255,255,255,0.1);
border-radius:6px;
box-shadow:inset 0 -15px 1px rgba(0,0,0,0.5),inset 0 1px 1px rgba(255,255,255,0.5),inset 0 8px 8px rgba(255,255,255,0.5);
font:bold 15px/28px Arial,Helvetica,sans-serif;
}
.calc-button:hover{
color:#fff;
text-shadow:0px 0px 8px rgb(255,230,186),0px 0px 22px rgb(255,255,255),0px -1px 0px rgba(0,0,0,0.5);
}
.calc-button-black{
background-color: #222;
background:radial-gradient(#444,#222,#000);	
}
.calc-button-blue{
background-color: #004;
background:radial-gradient(#008,#004,#002);	
}
.calc-button-green{
background-color: #040;	
background:radial-gradient(#080,#040,#020);
}
.calc-button-brown{
background-color: #322;
background:radial-gradient(#433,#322,#211);
}
.calc-button-orange{
color: black;	
background-color: #d82;
background:radial-gradient(#fa4,#d82,#b60);
}
.calc-button-purple{
background-color: #704;
background:radial-gradient(#a06,#704,#402);
}
.calc-active{
color:yellow;
border-color:yellow;
}
.calc-display{
font:bold 15px/28px Arial,Helvetica,sans-serif;		
font-size:45px;
height: 60px;
overflow-x:auto;
overflow-y:hidden;
padding: 0 8px;
line-height:61px;
text-align:right;
white-space:nowrap;
cursor:default;
text-shadow:0 -1px 0 rgba(0,0,0,0.01);
}