<div class="container">
  <h3>7 Types Of Attribute Selectors</h3>
  <a href="#selector_one">- [attr]</a>
  <a href="#selector_two">- [attr=value]</a>
  <a href="#selector_three">- [attr~=value]</a>
  <a href="#selector_four">- [attr|=value]</a>
  <a href="#selector_five">- [attr^=value]</a>
  <a href="#selector_six">- [attr$=value]</a>
  <a href="#selector_seven">- [attr*=value]</a>
</div>

<div class="selector" id="selector_one">
  <h2>[attr] - Attribute Exsist</h2>
  <a href="http://example.com" target="_blank">I'm External Link😎</a>
  <a href="#internal">I'm internal link🙄</a>
</div>

<div class="selector" id="selector_two">
  <h2>[attr = value]</h2>
  <a href="https://example.org" target="_blank">Yes, I'm😎</a>
  <a href="#internal">Oops, I'm not😣</a>
</div>

<div class="selector" id="selector_three">
  <h2>[attr~=value]</h2>
  <img src="//placehold.it/150/150" alt="abstract art">
  <img src="//placehold.it/150/150" alt="something to eat">
  <img src="//placehold.it/150/150" alt="athlete starting a new sport">
</div>

<div class="selector" id="selector_four">
  <h2>[Attr|=value]</h2>
  <ul>
    <li data-years="1800-1900">The 19th Century</li>
    <li data-years="1900-2000">The 20th Century</li>
    <li data-years="2000-2100">The 21st Century</li>
  </ul>
</div>

<div class="selector" id="selector_five">
  <h2>[attr^=value]</h2>
  <img src="//placehold.it/150/184/abstract" alt="artistic pattern">
  <img src="//placehold.it/150/184/food" alt="a healthy meal">
  <img src="//placehold.it/150/184/sports" alt="Arthur Miller">
</div>

<div class="selector" id="selector_six">
  <h2>[attr$=value]</h2>
  <a href="example.pdf" target="_blank">I'm pdf file😉</a>
  <a href="#internal">hm, I'm a link😒</a>
</div>

<div class="selector" id="selector_seven">
  <h2>[attr*=value]</h2>
  <img src="//placehold.it/150/150" alt="abstract art">
  <img src="//placehold.it/150/150" alt="something to eat">
  <img src="//placehold.it/150/150" alt="athlete starting a new sport">
</div>

@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@200;300;400;500;600;700&family=Raleway:wght@200;300;400;500;600;700&display=swap");
* {
  background: #000;
  color: #fff;
  font-size: 1.5rem;
  font-family: "Raleway", sans-serif;
}
h3,
h2 {
  font-size: 3rem;
  background-image: linear-gradient(25deg, #002657, #662b54, #a9264f, #ec004a);
  padding: 1em;
  font-weight: 300;
}
h2 {
  font-size: 2rem;
}
li {
  list-style: none;
}
.container a {
  text-decoration: none;
  display: block;
  background-image: linear-gradient(25deg, #002657, #662b54, #a9264f, #ec004a);
  padding: 0.5em;
  width: min(50%, 500px);
  margin: 0 auto;
}

.selector {
  text-align: center;
  padding: 100px 0 0 0;
}

@media (max-width: 700px) {
  * {
    font-size: 1rem;
  }
  h3 {
    font-size: 2rem;
  }
}
/* 7 types of selectors */
/* attribute exists */
#selector_one [target] {
  color: orange;
}
/* [attr=value] */
#selector_two a[href="https://example.org"]
{
  color: lightgreen;
}

/* [attr~=value] */
#selector_three img[alt~="art"] {
  border: 3px solid lightgreen;
}
/* attr|=value */
#selector_four li[data-years|="1900"] {
  /* data-years attribute starts with 1900 as the only value or first in a dash-separated list */
  color: red;
}

/* [attr^=value] */
#selector_five img[alt^="art"] {
  /* alt attribute starts with the value "art" */
  border: 3px solid #e18728;
}

/* attr$=value */
#selector_six [href$="pdf"] {
  background: white;
  color: brown;
  text-decoration: none;
  padding: 0.5em;
  border-radius: 2em;
  display: inline-block;
}

/* [attr*=value] */
#selector_seven img[alt*="art"] {
  border: 3px solid lightgreen;
}