metamask-extension/ui/app/css/itcss/components/buttons.scss

/*
  Buttons
 */

.btn-green {
  background-color: #02c9b1; // TODO: reusable color in colors.css
}

button.btn-clear {
  background: $white;
  border: 1px solid;
}

// No longer used in flat design, remove when modal buttons done
// div.wallet-btn {
//   border: 1px solid rgb(91, 93, 103);
//   border-radius: 2px;
//   height: 30px;
//   width: 75px;
//   font-size: 0.8em;
//   text-align: center;
//   line-height: 25px;
// }

// .btn-red {
//   background: rgba(254, 35, 17, 1);
//   box-shadow: 0px 3px 6px rgba(254, 35, 17, 0.36);
// }

button[disabled],
input[type="submit"][disabled] {
  cursor: not-allowed;
  background: rgba(197, 197, 197, 1);
  box-shadow: 0 3px 6px rgba(197, 197, 197, .36);
}

// button.spaced {
//   margin: 2px;
// }

// button:not([disabled]):hover, input[type="submit"]:not([disabled]):hover {
//   transform: scale(1.1);
// }
// button:not([disabled]):active, input[type="submit"]:not([disabled]):active {
//   transform: scale(0.95);
// }

button.primary {
  padding: 8px 12px;
  background: #f7861c;
  box-shadow: 0 3px 6px rgba(247, 134, 28, .36);
  color: $white;
  font-size: 1.1em;
  font-family: 'Montserrat Regular';
  text-transform: uppercase;
}

.btn-light {
  padding: 8px 12px;
  // background: #FFFFFF; // $bg-white
  box-shadow: 0 3px 6px rgba(247, 134, 28, .36);
  color: #585d67; // TODO: make reusable light button color
  font-size: 1.1em;
  font-family: 'Montserrat Regular';
  text-transform: uppercase;
  text-align: center;
  line-height: 20px;
  border-radius: 2px;
  border: 1px solid #979797; // #TODO: make reusable light border color
  opacity: .5;
}

// TODO: cleanup: not used anywhere
button.btn-thin {
  border: 1px solid;
  border-color: #4d4d4d;
  color: #4d4d4d;
  background: rgb(255, 174, 41);
  border-radius: 4px;
  min-width: 200px;
  margin: 12px 0;
  padding: 6px;
  font-size: 13px;
}