*{
    margin: 0; 
    padding: 0;
}
a{
    text-decoration: none;
}
kbd{
    border: 1px solid red;
    width:4em; 
    height: 4em; 
    display: inline-block; 
    text-transform: uppercase; 
    position: relative; 
}
kbd > button{
    position: absolute; 
    right: 0; 
    bottom: 0; 
    display: none; 
}
kbd:hover > button{
    display: inline-block; 
}
body{
    background: url('http://mcdlr.com/key-sheet/img/alum.png') center center; 
}
main{
    text-align: center; 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    height: 100vh; 
}
#main{
    display: inline-block;
}
#main> div:nth-child(2){
    margin-left: -22px; 
}
#main> div:nth-child(3){
    margin-left: -80px; 
}
.wrapper{
    background: rgba(255,255,255);
    border-radius: 10px;
}
.key{
    width: 47px;
    height: 69px;
    border-radius: 8px;
    padding: 0 12px;
    
    font-family: keyboard, "Arial Rounded", Helvetica, Arial, sans-serif;
    font-size: 24px;
    box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.5);
    cursor: pointer;
    background: linear-gradient(to bottom, #292929 0%,#111111 100%); 
    border: 1px solid #373737; color: #C5C5C5; border-radius: 6px; 
    position: relative;
    font-size: 16px; font-family: Helvetica;
}
.row{
    margin: 20px; 
}
.row .key{
    margin: 0 10px;
}
.key img{
    width: 16px; 
    height: 16px; 
    position: absolute; 
    left: 4px; 
    bottom: 2px;
}
.key .text{
    position: absolute; 
    left: 4px; 
    top: 2px; 
}