@salesforce-ux/design-system/css/publishers/base/index.css

Salesforce Lightning Design System

/*! Lightning Design System 2.12.0 */
@charset "UTF-8";
.slds-publisher {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}
.slds-publisher.slds-is-active {
  display: block;
}
.slds-publisher.slds-is-active .slds-publisher__toggle-visibility {
  display: inherit;
  height: auto;
  overflow: visible;
  width: auto;
}
.slds-publisher.slds-is-active .slds-publisher__input {
  line-height: 1.5;
  height: auto;
  max-height: 10rem;
  resize: vertical;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}
.slds-publisher__input {
  line-height: 1.875rem;
  padding: 0 1rem;
  resize: none;
  min-height: calc(1.875rem + 2px);
  max-height: calc(1.875rem + 2px);
  width: 100%;
}
.slds-publisher__actions > .slds-button {
  margin-left: 0.75rem;
}
.slds-publisher .slds-publisher__toggle-visibility {
  display: block;
  height: 0;
  overflow: hidden;
  width: 0;
}