gitea/web_src/css/modules/button.css

.ui.button {
  cursor: pointer;
  display: inline-flex;
  outline: none;
  font-family: var(--fonts-regular);
  margin: 0 0.25em 0 0;
  font-weight: var(--font-weight-normal);
  font-size: 1rem;
  text-align: center;
  text-decoration: none;
  line-height: 1;
  border-radius: var(--border-radius);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  justify-content: center;
  background: var(--color-button);
  border: 1px solid var(--color-light-border);
  color: var(--color-text);
  white-space: nowrap;
}

.ui.button:focus-visible {
  box-shadow: inset 0 0 0 2px currentcolor;
}

@media (max-width: 767.98px) {
  .ui.button {
    white-space: normal;
  }
}

.ui.button:hover {
  background: var(--color-hover);
  color: var(--color-text);
}

.ui.active.button,
.ui.button:active,
.ui.active.button:active,
.ui.active.button:hover {
  background: var(--color-active);
  color: var(--color-text);
}

.ui.buttons .disabled.button:not(.basic),
.ui.disabled.button,
.ui.button:disabled,
.ui.disabled.button:hover,
.ui.disabled.active.button {
  cursor: default;
  opacity: var(--opacity-disabled) !important;
  background-image: none;
  pointer-events: none !important;
}

/* there is no "ui labeled icon button" support" because it is not used */
.ui.labeled.button:not(.icon) {
  flex-direction: row;
  background: none;
  padding: 0;
  border: none;
  min-height: unset;
}
.ui.labeled.button > .button {
  margin: 0;
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}
.ui.labeled.button > .label {
  display: flex;
  align-items: center;
  margin: 0 0 0 -1px !important;
  font-size: 1em;
  border-color: var(--color-light-border);
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}
.ui.labeled.button > .label:hover {
  background: var(--color-hover);
}
.ui.labeled.button > .button:hover + .label {
  border-left-color: var(--color-secondary-dark-2);
}

.ui.button > .icon:not(.button) {
  height: auto;
  opacity: 0.8;
}
.ui.button:not(.icon) > .icon:not(.button):not(.dropdown),
.ui.button:not(.icon) > .icons:not(.button):not(.dropdown) {
  margin: 0 0.42857143em 0 -0.21428571em;
  vertical-align: baseline;
}
.ui.button:not(.icon) > .icons:not(.button):not(.dropdown) > .icon {
  vertical-align: baseline;
}
.ui.button:not(.icon) > .right.icon:not(.button):not(.dropdown) {
  margin: 0 -0.21428571em 0 0.42857143em;
}

/* reference sizes (not exactly at the moment): normal: padding-x=21, height=38 ; compact: padding-x=15, height=32 */
.ui.button { /* stylelint-disable-line no-duplicate-selectors */
  min-height: 38px;
  padding: 0.57em /* around 8px */ 1.43em /* around 20px */;
}
.ui.compact.buttons .button,
.ui.compact.button {
  padding: 0.42em /* around 8px */ 1.07em /* around 15px */;
  min-height: 32px;
}
.ui.compact.icon.buttons .button,
.ui.compact.icon.button {
  padding: 0.57em /* around 8px */;
}

/* reference size: mini: padding-x=16, height=30 ; compact: padding-x=12, height=26 */
.ui.mini.buttons .dropdown,
.ui.mini.buttons .dropdown .menu > .item,
.ui.mini.buttons .button,
.ui.ui.ui.ui.mini.button {
  font-size: 11px;
  min-height: 30px;
}
.ui.ui.ui.ui.mini.button.compact {
  min-height: 26px;
}

/* reference size: tiny: padding-x=18, height=32 ; compact: padding-x=13, height=28 */
.ui.tiny.buttons .dropdown,
.ui.tiny.buttons .dropdown .menu > .item,
.ui.tiny.buttons .button,
.ui.ui.ui.ui.tiny.button {
  font-size: 12px;
  min-height: 32px;
}
.ui.ui.ui.ui.tiny.button.compact {
  min-height: 28px;
}

/* reference size: small: padding-x=19, height=34 ; compact: padding-x=14, height=30 */
.ui.small.buttons .dropdown,
.ui.small.buttons .dropdown .menu > .item,
.ui.small.buttons .button,
.ui.ui.ui.ui.small.button {
  font-size: 13px;
  min-height: 34px;
}
.ui.ui.ui.ui.small.button.compact {
  min-height: 30px;
}

.ui.icon.buttons .button,
.ui.icon.button:not(.compact) {
  padding: 0.57em;
}
.ui.icon.buttons .button > .icon,
.ui.icon.button > .icon {
  margin: 0 !important;
  vertical-align: top;
}

.ui.basic.buttons .button,
.ui.basic.button {
  border-radius: var(--border-radius);
  background: none;
}
.ui.basic.buttons {
  border: 1px solid var(--color-secondary);
  border-radius: var(--border-radius);
}
.ui.basic.buttons .button {
  border-radius: 0;
  border-left: 1px solid var(--color-secondary);
}

.ui.labeled.button.disabled > .button,
.ui.basic.buttons .button,
.ui.basic.button {
  color: var(--color-text-light);
  background: var(--color-button);
}

.ui.basic.buttons .button:hover,
.ui.basic.button:hover {
  color: var(--color-text);
  background: var(--color-hover);
  border-color: var(--color-secondary-dark-2);
}

.ui.basic.buttons .button:active,
.ui.basic.button:active,
.ui.basic.buttons .active.button,
.ui.basic.active.button,
.ui.basic.buttons .active.button:hover,
.ui.basic.active.button:hover {
  color: var(--color-text);
  background: var(--color-active);
}

.ui.button.toggle.active {
  background-color: var(--color-green);
  color: var(--color-white);
}
.ui.button.toggle.active:hover {
  background-color: var(--color-green-dark-1);
  color: var(--color-white);
}

.ui.fluid.button {
  width: 100%;
  display: block;
}

.ui.primary.button,
.ui.primary.buttons .button {
  background: var(--color-primary);
  color: var(--color-primary-contrast);
}

.ui.primary.button:hover,
.ui.primary.buttons .button:hover {
  background: var(--color-primary-hover);
  color: var(--color-primary-contrast);
}

.ui.primary.button:active,
.ui.primary.buttons .button:active {
  background: var(--color-primary-active);
}

.ui.basic.primary.buttons .button,
.ui.basic.primary.button {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: none;
}

.ui.basic.primary.buttons .button:hover,
.ui.basic.primary.button:hover {
  color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.ui.basic.primary.buttons .button:active,
.ui.basic.primary.button:active {
  color: var(--color-primary-active);
  border-color: var(--color-primary-active);
}

.ui.red.button,
.ui.red.buttons .button {
  color: var(--color-white);
  background: var(--color-red);
}

.ui.red.button:hover,
.ui.red.buttons .button:hover {
  background: var(--color-red-dark-1);
}

.ui.red.button:active,
.ui.red.buttons .button:active {
  background: var(--color-red-dark-2);
}

.ui.basic.red.buttons .button,
.ui.basic.red.button {
  color: var(--color-red);
  border-color: var(--color-red);
  background: none;
}

.ui.basic.red.buttons .button:hover,
.ui.basic.red.button:hover {
  color: var(--color-red-dark-1);
  border-color: var(--color-red-dark-1);
}

.ui.basic.red.buttons .button:active,
.ui.basic.red.button:active {
  color: var(--color-red-dark-2);
  border-color: var(--color-red-dark-2);
}

.ui.green.button,
.ui.green.buttons .button {
  color: var(--color-white);
  background: var(--color-green);
}

.ui.green.button:hover,
.ui.green.buttons .button:hover {
  background: var(--color-green-dark-1);
}

.ui.green.button:active,
.ui.green.buttons .button:active {
  background: var(--color-green-dark-2);
}

.ui.basic.green.buttons .button,
.ui.basic.green.button {
  color: var(--color-green);
  border-color: var(--color-green);
  background: none;
}

.ui.basic.green.buttons .button:hover,
.ui.basic.green.button:hover {
  color: var(--color-green-dark-1);
  border-color: var(--color-green-dark-1);
}

.ui.basic.green.buttons .button:active,
.ui.basic.green.button:active {
  color: var(--color-green-dark-2);
  border-color: var(--color-green-dark-2);
}

.ui.buttons {
  display: inline-flex;
  flex-direction: row;
  font-size: 0;
  vertical-align: baseline;
  margin: 0 0.25em 0 0;
}

.delete-button,
.delete-button:hover {
  color: var(--color-red);
}

/* btn is a plain button without any opinionated styling, it only uses flex for vertical alignment like ".ui.button" in base.css */

.btn {
  background: transparent;
  border-radius: var(--border-radius);
  border: none;
  color: inherit;
  margin: 0;
  padding: 0;
}

.btn:hover,
.btn:active {
  background: none;
  border: none;
}

a.btn,
a.btn:hover {
  color: inherit;
}

.btn.tiny {
  font-size: 12px;
}

.btn.small {
  font-size: 13px;
}

/* By default, Fomantic UI doesn't support "bordered" buttons group, but Gitea would like to use it.
And the default buttons always have borders now (not the same as Fomantic UI's default buttons, see above).
It needs some tricks to tweak the left/right borders with active state */

.ui.buttons .button {
  border-right: none;
  border-radius: 0;
  flex-shrink: 0;
  margin: 0;
}
.ui.buttons .button:first-child {
  border-left: none;
  margin-left: 0;
  border-top-left-radius: var(--border-radius);
  border-bottom-left-radius: var(--border-radius);
}
.ui.buttons .button:last-child {
  border-top-right-radius: var(--border-radius);
  border-bottom-right-radius: var(--border-radius);
}

.ui.buttons .button:hover {
  border-color: var(--color-secondary-dark-2);
}

.ui.buttons .button:hover + .button {
  border-left: 1px solid var(--color-secondary-dark-2);
}

/* TODO: these "tw-hidden" selectors are only used by "blame.tmpl" buttons: Raw/Normal View/History/Unescape, need to be refactored to a clear solution later */
.ui.buttons .button:first-child,
.ui.buttons .button.tw-hidden:first-child + .button {
  border-left: 1px solid var(--color-light-border);
}

.ui.buttons .button:last-child,
.ui.buttons .button:nth-last-child(2):has(+ .button.tw-hidden) {
  border-right: 1px solid var(--color-light-border);
}

.ui.buttons .button.active {
  border-left: 1px solid var(--color-light-border);
  border-right: 1px solid var(--color-light-border);
}

.ui.buttons .button.active + .button {
  border-left: none;
}