.c-button {
  background: #ececec;
}
  .c-button:hover {
    background: #f2f2f2;
  }

.c-button--primary {
  background: #c00;
}
  .c-button--primary:hover {
    background: #e50000;
  }

.c-alert {
  color: #666;
  background: #f2f2f2;
}
.c-alert--danger {
  color: #f00;
  background: #feedeb;
}
.c-alert--success {
  color: #4caf50;
  background: #edf7ee;
}

.c-input--text {
  border-color: #dedede;
}
  .c-input--text:focus {
    border-color: #666;
  }