gitea/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;
}

.ui.modal {
  background: var(--color-body);
  box-shadow: 1px 3px 3px 0 var(--color-shadow), 1px 3px 15px 2px var(--color-shadow);
}

/* Gitea sometimes use a form in a modal dialog, then the "positive" button could submit the form directly
Fomantic UI only supports the layout: <div .modal><div .content/><div .actions/></div>
However, Gitea uses the following layouts:
* <div .modal><div .content><div .actions/></div></div>
* <div .modal><form><div .content/><div .actions/></form></div>
* <div .modal><div .content><form><div .actions/></form></div></div>
* <div .modal><div .content></div><form><div .actions/></form></div>
* ...
These inconsistent layouts should be refactored to simple ones.
*/

.ui.modal > .content,
.ui.modal form > .content {
  padding: 1.5em;
  background: var(--color-body);
}

.ui.modal > .actions,
.ui.modal .content + .actions,
.ui.modal .content + form > .actions {
  background: var(--color-secondary-bg);
  border-color: var(--color-secondary);
  padding: 1rem;
  text-align: right;
}

.ui.modal .content > .actions {
  padding-top: 1em; /* if the "actions" is in the "content", some paddings are already added by the "content" */
  text-align: right;
}

/* positive/negative action buttons */
.ui.modal .actions > .ui.button {
  display: inline-flex;
  align-items: center;
  padding: 10px 12px 10px 10px;
  margin-right: 0;
}

.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;
}