forgejo/web_src/css/modules/modal.css

.ui.modal.g-modal-confirm {
  max-width: min(800px, 90vw);
  width: fit-content;
}

.ui.modal.g-modal-confirm > .inside.close {
  padding: 0;
  width: 1em;
  height: 1em;
  top: 1.2em;
}

.ui.modal > .header {
  /* can't use display:flex, because some headers have space-separated elements, eg: delete branch modal */
  color: var(--color-text-dark);
  background: var(--color-body);
  border-color: var(--color-secondary);
  border-top-left-radius: var(--border-radius);
  border-top-right-radius: var(--border-radius);
  vertical-align: middle;
}

.ui.modal > .header .svg {
  vertical-align: middle;
  display: inline-block;
}

/* Gitea sometimes use a form in a modal dialog, then the "positive" button could submit the form directly */

.ui.modal > .content,
.ui.modal > form > .content {
  background: var(--color-body);
}

.ui.modal > .actions,
.ui.modal > form > .actions {
  background: var(--color-secondary-bg);
  border-color: var(--color-secondary);

  /* these styles are from Fomantic UI */
  padding: 1rem;
  text-align: right;
}

/* positive/negative action buttons */
.ui.modal .actions > .ui.button {
  display: inline-flex;
  align-items: center;
  padding: 10px 12px 10px 10px;
}

.ui.modal .actions > .ui.button.danger {
  display: block;
  width: 100%;
  margin: 0 auto;
  text-align: center;
}

.ui.modal .actions > .ui.button .svg {
  margin-right: 5px;
}