*{margin:0;}

body {
  overflow-x: hidden;  
}

header{
  position: absolute;
  width: 100%;    
}

.content{
    margin: 1em 2em;    
}
.content ul, .content ol{
    margin: .8em 1em .8em 2em;   
}
span.code{
    font-family: "Lucida Console", "Lucida Sans Typewriter", Monaco, "Bitstream Vera Sans Mono", monospace;   
    color: #999;
}
.gist{
    margin: 1em 1em 2em 2em;
}
ol .gist{
    margin: 1em 0 2em 0;
}

.num2{
    width: 100%;
    margin: 2em auto;
}
footer{
    color: #ccc;
    font-size: .8em;
    font-style: italic;
    text-align: center;
    background: #000;
    padding: 1.5em 0 .5em 0;
    margin-top: 5em;
}
footer span{
    font-size: 1.3em;
    color: #fff;
}
@media screen and (max-width: 830px){
    .desc{
        display: none;   
    }
}

@media screen and (max-width: 400px){
    header span{
        display: none;   
    }
    .gist{
        width: 100%;
    }
}