Bit of CSS that makes Gitea more like GitHub. Currently used on https://git.geheimesite.nl.

gitea-github-layout.css

.organization.profile .ui.container:first-child {
  margin: 38px auto;
}

.organization.profile p:empty {
  display: none;
}

.organization.profile .org-avatar {
  width: 130px;
  height: 130px;
  margin-right: 30px;
  border-radius: 7px;
  box-shadow: 0 0 0 1px var(--color-avatar-border);
}

.organization.profile #org-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.organization.profile #org-info .ui.header {
  font-weight: bolder !important;
}

.organization.profile #org-info .ui.header .org-visibility {
  font-weight: revert;
}

.repo-title {
  font-weight: bolder;
}

.repo-topics {
  margin-bottom: 25px;
}

.user.profile .ui.card #profile-avatar img {
  border-radius: 100%;
  box-shadow: rgba(240, 246, 252, 0.1) 0px 0px 0px 1px;
}

.user.profile .ui.card {
  background: transparent;
  border: none;
}

.user.profile .ui.card .header {
  font-size: 1.9em;
  margin-top: 0.9rem;
  line-height: 2.7rem;
  text-align: left;
}

.user.profile .ui.card .profile-avatar-name {
  text-align: left;
  margin-bottom: 2em;
}

.user.profile .ui.card .profile-avatar-name .username {
  font-size: 1.45em;
  opacity: 0.75;
}

.user-orgs li {
  width: auto;
}

.ui.repository.list .item {
  margin: 25px 0;
}

.ui.user.list .item {
  display: flex;
  gap: 12px;
}

.ui.button {
  box-shadow: var(--color-btn-primary-shadow),
    var(--color-btn-primary-inset-shadow);
  transition: 80ms cubic-bezier(0.33, 1, 0.68, 1);
  transition-property: all;
  transition-duration: 80ms;
  transition-property: color, background-color, box-shadow, border-color;
  display: inline-block;
  padding: 6px 17px;
  font-size: 14px;
  font-weight: var(--base-text-weight-medium, 500);
  line-height: 20px;
  border: 1px solid rgba(31, 35, 40, 0.15);
  border-radius: 6px;
  transition-duration: 0.1s;
  font-weight: 500;
  --color-btn-primary-border: rgba(31, 35, 40, 0.15);
  --color-btn-primary-shadow: 0 1px 0 rgba(31, 35, 40, 0.1);
  --color-btn-primary-inset-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.ui.menu {
  border-radius: 7px;
}

.ui.segment {
  border-radius: 9px;
}

:root {
  --border-radius: 9px;
}

.repository.view.issue .comment-list .comment > .content > div:first-child {
  border-top-left-radius: 9px;
  border-top-right-radius: 9px;
}

.repository.view.issue .comment-list .comment > .content > div:last-child {
  border-bottom-left-radius: 9px;
  border-bottom-right-radius: 9px;
}