:root {
  color: blue;
}

::selection,
.\:selection {
  background-color: mintcream;
}

a {
  text-decoration: none;
}

a:hover,
a.\:hover {
  text-decoration: underline;
}

a:active {
  font-weight: bold;
}

a:hover,
a:focus,
a.\:hover,
a.\:focus {
  font-weight: bold;
}

a.lol:active {
  font-weight: normal;
}

a:nth-child(5),
a.\:nth-child(5) {
  border: 1px solid papayawhip;
}

a:hover:focus,
a:hover.\:focus,
a.\:hover:focus,
a.\:hover.\:focus {
  font-weight: bold;
}

a:before {
  color: white;
}

a::before {
  color: white;
}

a:before,
a::before {
  color: white;
}

a:hover::before,
a.\:hover::before {
  border-top-color: blue;
}

a:active:focus:hover::after,
a:active:focus.\:hover::after,
a:active.\:focus:hover::after,
a:active.\:focus.\:hover::after {
  border-bottom-color: blue;
}

a:active:focus + div:hover,
a:active:focus + div.\:hover,
a:active.\:focus + div:hover,
a:active.\:focus + div.\:hover {
  color: magenta;
}

:global a {
  border-top-color: burlywood;
}

:global(a) {
  color: firebrick;
}

:global a:hover,
:global a.\:hover {
  color: peachpuff;
}

:global a:hover b:focus,
:global a:hover b.\:focus,
:global a.\:hover b:focus,
:global a.\:hover b.\:focus {
  color: thistle;
}

:global(a:hover),
:global(a.\:hover) {
  color: cadetblue
}

:global(a:hover) b:focus,
:global(a:hover) b.\:focus,
:global(a.\:hover) b:focus,
:global(a.\:hover) b.\:focus {
  color: whitesmoke;
}

:host {
  color: blue;
}

:host-context(a) {
  color: blue;
}

:host([disabled]) {
  opacity: .4;
}

:host([enabled]) {
  opacity: 1;
}

a:hover, :host,
a.\:hover {
  color: blue;
}

.block .element:active {
  color: blue;
}

:host .block .element:active {
  color: blue;
}

/*test multiple pseudo classes on one element but one is excluded (:host)
 no useful css rule, but another pseudo class, like :nth-child could be added
 by the user.
 */
.element:host:active {
  color:blue
}

/*test :host (excluded) with modifier class on host (element)*/
.hostVariant:host .block .element:active {
  color: blue;
}

/*test :host (excluded) with modifier class on host (element)*/
:host.hostVariant .block .element:active {
  color: blue;
}

/*test :host (excluded) with id on host (element)*/
:host#specialVariantId .block .element:active {
  color: blue;
}