gitea/web_src/css/repo/issue-list.css

.issue-list-toolbar {
  display: flex;
  flex-wrap: wrap-reverse;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-top: 1rem;
}

.issue-list-toolbar-left {
  display: flex;
}

.issue-list-toolbar-right .filter.menu {
  flex-direction: row;
  flex-wrap: wrap;
}

@media (max-width: 767.98px) {
  .issue-list-toolbar-right .dropdown .menu {
    left: auto !important;
    right: auto !important;
  }
  .issue-list-navbar {
    order: 0;
  }
  .issue-list-new {
    order: 1;
    margin-left: auto !important;
  }
  .issue-list-search {
    order: 2 !important;
  }
}