code.gitea.io/gitea@v1.22.3/web_src/css/modules/input.css

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

.ui.input {
  position: relative;
  font-weight: var(--font-weight-normal);
  display: inline-flex;
  color: var(--color-input-text);
}
.ui.input > input {
  margin: 0;
  max-width: 100%;
  flex: 1 0 auto;
  outline: none;
  font-family: var(--fonts-regular);
  padding: 0.67857143em 1em;
  border: 1px solid var(--color-input-border);
  color: var(--color-input-text);
  border-radius: 0.28571429rem;
  line-height: var(--line-height-default);
  text-align: start;
}

.ui.disabled.input,
.ui.input:not(.disabled) input[disabled] {
  opacity: var(--opacity-disabled);
}
.ui.disabled.input > input,
.ui.input:not(.disabled) input[disabled] {
  pointer-events: none;
}

.ui.input.focus > input,
.ui.input > input:focus {
  border-color: var(--color-primary);
}

.ui.input.error > input {
  background: var(--color-error-bg);
  border-color: var(--color-error-border);
  color: var(--color-error-text);
}

.ui.icon.input > i.icon {
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: default;
  position: absolute;
  text-align: center;
  top: 0;
  right: 0;
  margin: 0;
  height: 100%;
  width: 2.67142857em;
  opacity: 0.5;
  border-radius: 0 0.28571429rem 0.28571429rem 0;
  pointer-events: none;
  padding: 4px;
}

.ui.icon.input > i.icon.is-loading {
  position: absolute !important;
  height: 28px;
  top: 4px;
}

.ui.icon.input > i.icon.is-loading > * {
  visibility: hidden;
}

.ui.ui.ui.ui.icon.input > textarea,
.ui.ui.ui.ui.icon.input > input {
  padding-right: 2.67142857em;
}
.ui.icon.input > i.link.icon {
  cursor: pointer;
}
.ui.icon.input > i.circular.icon {
  top: 0.35em;
  right: 0.5em;
}

.ui[class*="left icon"].input > i.icon {
  right: auto;
  left: 1px;
  border-radius: 0.28571429rem 0 0 0.28571429rem;
}
.ui[class*="left icon"].input > i.circular.icon {
  right: auto;
  left: 0.5em;
}
.ui.ui.ui.ui[class*="left icon"].input > textarea,
.ui.ui.ui.ui[class*="left icon"].input > input {
  padding-left: 2.67142857em;
  padding-right: 1em;
}

.ui.icon.input > textarea:focus ~ .icon,
.ui.icon.input > input:focus ~ .icon {
  opacity: 1;
}

.ui.icon.input > textarea ~ i.icon {
  height: 3em;
}

.ui.form .field.error > .ui.action.input > .ui.button,
.ui.action.input.error > .ui.button {
  border-top: 1px solid var(--color-error-border);
  border-bottom: 1px solid var(--color-error-border);
}

.ui.action.input > .button,
.ui.action.input > .buttons {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
}
.ui.action.input > .button,
.ui.action.input > .buttons > .button {
  padding-top: 0.78571429em;
  padding-bottom: 0.78571429em;
  margin: 0;
}

.ui.action.input:not([class*="left action"]) > input {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  border-right-color: transparent;
}

.ui.action.input > .dropdown:first-child,
.ui.action.input > .button:first-child,
.ui.action.input > .buttons:first-child > .button {
  border-radius: 0.28571429rem 0 0 0.28571429rem;
}
.ui.action.input > .dropdown:not(:first-child),
.ui.action.input > .button:not(:first-child),
.ui.action.input > .buttons:not(:first-child) > .button {
  border-radius: 0;
}
.ui.action.input > .dropdown:last-child,
.ui.action.input > .button:last-child,
.ui.action.input > .buttons:last-child > .button {
  border-radius: 0 0.28571429rem 0.28571429rem 0;
}

.ui.fluid.input {
  display: flex;
}
.ui.fluid.input > input {
  width: 0 !important;
}

.ui.tiny.input {
  font-size: 0.85714286em;
}
.ui.small.input {
  font-size: 0.92857143em;
}

.ui.action.input .ui.ui.button {
  border-color: var(--color-input-border);
  padding-top: 0; /* the ".action.input" is "flex + stretch", so let the buttons layout themselves */
  padding-bottom: 0;
}

/* currently used for search bar dropdowns in repo search and explore code */
.ui.action.input:not([class*="left action"]) > .ui.dropdown.selection {
  min-width: 10em;
}
.ui.action.input:not([class*="left action"]) > .ui.dropdown.selection:not(:focus) {
  border-right: none;
}
.ui.action.input:not([class*="left action"]) > .ui.dropdown.selection:not(.active):hover {
  border-color: var(--color-input-border);
}
.ui.action.input:not([class*="left action"]) .ui.dropdown.selection.upward.visible {
  border-bottom-left-radius: 0 !important;
  border-bottom-right-radius: 0 !important;
}
.ui.action.input:not([class*="left action"]) > input,
.ui.action.input:not([class*="left action"]) > input:hover {
  border-right: none;
}
.ui.action.input:not([class*="left action"]) > input:focus + .ui.dropdown.selection,
.ui.action.input:not([class*="left action"]) > input:focus + .ui.dropdown.selection:hover,
.ui.action.input:not([class*="left action"]) > input:focus + .button,
.ui.action.input:not([class*="left action"]) > input:focus + .button:hover,
.ui.action.input:not([class*="left action"]) > input:focus + i.icon + .button,
.ui.action.input:not([class*="left action"]) > input:focus + i.icon + .button:hover {
  border-left-color: var(--color-primary);
}
.ui.action.input:not([class*="left action"]) > input:focus {
  border-right-color: var(--color-primary);
}