body {
  padding-top: 100px;
  padding-bottom: 100px;
  height: 100%;
}
*:not([href])[id]:before  { 
  display: block; 
  content: " "; 
  margin-top: -65px; 
  height: 65px; 
  visibility: hidden; 
}

#col1 {
  z-index: 10;
}

#col2 {
  z-index: 9;
}

#col3 {
  z-index: 8;
}

table {
  margin-bottom: 2em;
}

tr:nth-child(2n) {
    background-color: #f3f3f3;
}

td {
  padding-right: 2em;
}

.twtr-icon {
  fill: #00aced;
}

.octicon {
    fill: #aaa;
}