.code {
  font-family: "Lucida Console", Monaco, monospace;
}

.popup-box {
  display: none;
  position: fixed;
  z-index: 1;
  padding-top: 100px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgb(0,0,0);
  background-color: rgba(0,0,0,0.4);
}

.popup-content {
  background-color: #fefefe;
  margin: auto;
  padding: 20px;
  border: 1px solid #888;
  width: 80%;
}

.popup-box-close {
  color: #aaaaaa;
  float: right;
  font-size: 28px;
  font-weight: bold;
}

.formula-input-outer-container {
  padding: 10px;
  display: flex;
  flex-wrap: nowrap;
  flex-direction: column;
  width: 80%;
  margin: auto;
}

.formula-input-button-container {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  padding: 5px;
}

.formula-input-field {
  padding: 10px;
}

.formula-input-btn {
}

footer {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 80%;
  background-color: transparent;
  color: white;
  padding: 10px;
}