.peek-rblineprof-modal {
  width: 900px;
  position: absolute;
  z-index: 10000;
  left: 50%;
  margin-left: -450px;

  pre {
    font-family: monospace;
  }
}

.peek-rblineprof-file {
  background: #fff;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.25);
  margin-bottom: 10px;

  .heading {
    background: #333;
    color: #aaa;
    padding: 10px 15px;
    text-shadow: 0 1px 0 #000;

    .duration {
      margin: 0 65px 0 40px;
    }

    a {
      color: #fff;
    }
  }

  pre {
    padding: 15px;
  }
}
.peek-rblineprof-modal {
  width: 900px;
  position: absolute;
  z-index: 10000;
  left: 50%;
  margin-left: -450px;

  pre {
    font: 12px/18px monospace;
  }
}

.peek-rblineprof-file {
  background: #fff;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.25);
  margin-bottom: 10px;

  .heading {
    background: #333;
    color: #aaa;
    padding: 10px 15px;
    text-shadow: 0 1px 0 #000;

    .duration {
      margin: 0 65px 0 40px;
    }

    a {
      color: #fff;
    }
  }

  pre {
    padding: 15px;
  }
}
Add some spacing for each line
Add some spacing for each line
