#app {
  margin: 0 5%;
}

input[type="text"], input[type="button"] {
  display: block;
  width: 20%;
  margin-top: .3em;
  padding: .5em;
  border: 1px solid #ccc;
  border-radius: .4em;
}

br {
  clear: both;
}

.invalidateBtn, .changeReadStatusBtn, .copyBtn {
  float: left;
}

input[type="button"] + input[type="button"] {
  margin-left: 1em;
}

.piglet + .piglet {
  margin-top: 2em;
  background-color:white;
}

.pull-right {
  float: right;
}