popup.css

html,
body {
  width: 500px;
  background-color: transparent;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 16px;
  margin: 0 auto;
  text-align: justify;
}

* {
  -moz-box-sizing: border-box;
  -o-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
.btn {
  background-color: #ffb319;
  border: 1px solid #ffb319;
  color: #191919;
  border-radius: 5px;
  height: 32px;
  font-size: 0.9375rem;
  cursor: pointer;
  margin-top: 0;
}

.btn:hover {
  background-color: #f7a808;
  border: 1px solid #d9950d;
}

.container {
  margin-top: 10px;
  width: 100%;
  padding: 0px 10px 10px 10px;
}

.api_section {
  display: flex;
  flex-direction: column;
}

.setting_row {
  margin-top: 10px;
  padding: 0;
  display: flex;
  text-align: left;
  align-items: center;
}

.setting_row > div {
  margin-right: 10px;
}