pre {
    
    vertical-align: text-top;    
    margin-top: 2px;
}



body {
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";    
}

 h1 {
        margin: .67em 0;
        font-weight: 600;
        padding-bottom: .3em;
        font-size: 2em;
        border-bottom: 1px solid hsla(210,18%,87%,1);
    }

p {
    text-align: justify;
}

code {
    background-color: #f3f3f3;
    font-family: Consolas
}

select {
  color: #333;
  background-color: #ffffff;
  border: 1px solid #cccccc;
}