.table thead tr {
  background-color: #d9edf7;
}

.well-inverse {
  min-height: 20px;
  padding: 19px;
  margin-bottom: 20px;
  background-color: #1b1b1b;
  border: 1px solid #e3e3e3;
  -webkit-border-radius: 4px;
     -moz-border-radius: 4px;
          border-radius: 4px;
  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.05);
     -moz-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.05);
          box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.05);
}

.spacer-l10 {
    margin-left: 10px; /* define margin as you see fit */
}

.spacer-r10 {
    margin-right: 10px; /* define margin as you see fit */
}

.spacer-t10 {
    margin-top: 10px; /* define margin as you see fit */
}

.spacer-t140 {
    margin-top: 140px; /* define margin as you see fit */
}

.spacer-t250 {
    margin-top: 250px; /* define margin as you see fit */
}