forgejo/web_src/css/modules/header.css

/* based on Fomantic UI header module, with just the parts extracted that we use. If you find any
   unused rules here after refactoring, please remove them. */

.ui.header {
  color: var(--color-text);
  border: none;
  margin: calc(2rem - 0.1428571428571429em) 0 1rem;
  padding: 0;
  font-family: var(--fonts-regular);
  font-weight: var(--font-weight-medium);
  line-height: 1.28571429;
  text-transform: none;
}

.ui.header:first-child {
  margin-top: -0.14285714em;
}

.ui.header:last-child {
  margin-bottom: 0;
}

.ui.header .ui.label {
  margin-left: 0.25rem;
  vertical-align: middle;
}

.ui.header > .ui.label.compact {
  margin-top: inherit;
}

.ui.header .sub.header {
  display: block;
  font-weight: var(--font-weight-normal);
  padding: 0;
  margin: 0;
  font-size: 1rem;
  line-height: 1.2;
  color: var(--color-text-light-1);
}

.ui.header > i.icon {
  display: table-cell;
  opacity: 1;
  font-size: 1.5em;
  padding-top: 0;
  vertical-align: middle;
}

.ui.header > i.icon:only-child {
  display: inline-block;
  padding: 0;
  margin-right: 0.75rem;
}

.ui.header + p {
  margin-top: 0;
}

h2.ui.header {
  font-size: 1.71428571rem;
}
h2.ui.header .sub.header {
  font-size: 1.14285714rem;
}

h4.ui.header {
  font-size: 1.07142857rem;
}
h4.ui.header .sub.header {
  font-size: 1rem;
}

.ui.sub.header {
  padding: 0;
  margin-bottom: 0.14285714rem;
  font-weight: var(--font-weight-normal);
  font-size: 0.85714286em;
}

.ui.icon.header svg {
  width: 3em;
  height: 3em;
  float: none;
  display: block;
  line-height: var(--line-height-default);
  padding: 0;
  margin: 0 auto 0.5rem;
  opacity: 1;
}

.ui.header:not(h1,h2,h3,h4,h5,h6) {
  font-size: 1.28571429em;
}

.ui.attached.header {
  position: relative;
  background: var(--color-box-header);
  padding: 0.78571429rem 1rem;
  margin: 0 -1px;
  border-radius: 0;
  border: 1px solid var(--color-secondary);
}

.ui.attached:not(.top).header {
  border-top: none;
}

.ui.top.attached.header {
  border-radius: 0.28571429rem 0.28571429rem 0 0;
}

.ui.bottom.attached.header {
  border-radius: 0 0 0.28571429rem 0.28571429rem;
}

.ui.attached.header:not(h1,h2,h3,h4,h5,h6) {
  font-size: 1em;
}

/* fix misaligned right buttons on box headers */
.ui.attached.header > .ui.right {
  position: absolute;
  right: 0.78571429rem;
  top: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  gap: 0.25em;
}

/* the default ".ui.attached.header > .ui.right" is only able to contain "tiny" buttons, other buttons are too large */
.ui.attached.header > .ui.right .ui.tiny.button {
  padding: 6px 10px;
  font-weight: var(--font-weight-normal);
}

/* open dropdown menus to the left in right-attached headers */
.ui.attached.header > .ui.right .ui.dropdown .menu {
  right: 0;
  left: auto;
}

/* if a .top.attached.header is followed by a .segment, add some margin */
.ui.segments + .ui.top.attached.header,
.ui.attached.segment + .ui.top.attached.header {
  margin-top: 1rem;
}

.ui.dividing.header {
  border-bottom-color: var(--color-secondary);
}

.ui.dividing.header .sub.header {
  padding-bottom: 0.21428571rem;
}

.ui.dividing.header i.icon {
  margin-bottom: 0;
}

.ui.error.header {
  background: var(--color-error-bg) !important;
  color: var(--color-error-text) !important;
  border-color: var(--color-error-border) !important;
}

.ui.warning.header {
  background: var(--color-warning-bg) !important;
  color: var(--color-warning-text) !important;
  border-color: var(--color-warning-border) !important;
}

.attention-header {
  padding: 0.5em 0.75em !important;
  color: var(--color-text) !important;
}