<a href="#modal-opened" class="link-1" id="modal-closed">Open Modal</a>

<div class="modal-container" id="modal-opened">
  <div class="modal">

    <div class="modal__details">
      <h1 class="modal__title">Modal Title</h1>
      <p class="modal__description">Sentence that will tell user what this modal is for or something.</p>
    </div>

    <p class="modal__text">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facilis ex dicta maiores libero minus obcaecati iste optio, eius labore repellendus.</p>

    <button class="modal__btn">Button &rarr;</button>

    <a href="#modal-closed" class="link-2"></a>

  </div>
</div>

<a href="https://codepen.io/AbubakerSaeed/full/eYOvKpY" class="second-version-link" target="_blank">CSS Modals (Modal v2)</a>

<a href="https://abubakersaeed.netlify.app/designs/d7-modal" class="abs-site-link" rel="nofollow noreferrer" target="_blank">abs/designs/d7-modal</a>
/* defaults */
/* =============================================== */
*,
*::after,
*::before {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 62.5%;
}

body {
  --light: hsl(0, 0%, 100%);
  --background: linear-gradient(to right bottom, hsl(236, 50%, 50%), hsl(195, 50%, 50%));

  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;

  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Open Sans', sans-serif;

  min-height: 100vh;
  background: linear-gradient(to bottom, hsl(236, 50%, 98%), hsl(236, 50%, 94%));
}

a,
a:link {
  font-family: inherit;
  text-decoration: none;
}

/* modal */
/* =============================================== */
.modal-container {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;

  display: none;
  justify-content: center;
  align-items: center;

  width: 100%;
  height: 100%;

  background: hsla(0, 0%, 40%, .6);
}

/* using :target */
.modal-container:target {
  display: flex;
}

.modal {
  width: 60rem;
  padding: 4rem 2rem;
  border-radius: .8rem;

  color: var(--light);
  background: var(--background);
  box-shadow: .4rem .4rem 2.4rem .2rem hsla(236, 50%, 50%, 0.3);
  position: relative;

  overflow: hidden;
}

.modal__details {
  text-align: center;

  margin-bottom: 4rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid hsla(0, 0%, 100%, .4);
}

.modal__title {
  font-size: 3.2rem;
}

.modal__description {
  margin-top: 2rem;

  font-size: 1.6rem;
  font-style: italic;
}

.modal__text {
  padding: 0 4rem;
  margin-bottom: 4rem;

  font-size: 1.6rem;
  line-height: 2;
}

.modal__text::before {
  content: '';

  position: absolute;
  top: 0%;
  left: 100%;
  transform: translate(-50%, -50%);

  width: 18rem;
  height: 18rem;
  border: 1px solid hsla(0, 0%, 100%, .2);
  border-radius: 100rem;

  pointer-events: none;
}

.modal__btn {
  padding: 1rem 1.6rem;
  border: 1px solid hsla(0, 0%, 100%, .4);
  border-radius: 100rem;

  color: inherit;
  background: transparent;
  font-size: 1.4rem;
  font-family: inherit;
  letter-spacing: .2rem;

  transition: .2s;
  cursor: pointer;
}

.modal__btn:hover,
.modal__btn:focus {
  border-color: hsla(0, 0%, 100%, .6);
  transform: translateY(-.2rem);
}

/* links */
/* =============================================== */
.link-1 {
  font-size: 1.8rem;

  color: var(--light);
  background: var(--background);
  box-shadow: .4rem .4rem 2.4rem .2rem hsla(236, 50%, 50%, 0.3);
  border-radius: 100rem;
  padding: 1.4rem 3.2rem;

  transition: .2s;
}

.link-1:hover,
.link-1:focus {
  transform: translateY(-.2rem);
  box-shadow: 0 0 4.4rem .2rem hsla(236, 50%, 50%, 0.4);
}

.link-2 {
  width: 4rem;
  height: 4rem;
  border: 1px solid hsla(0, 0%, 100%, .4);
  border-radius: 100rem;

  color: inherit;
  font-size: 2.2rem;

  position: absolute;
  top: 2rem;
  right: 2rem;

  display: flex;
  justify-content: center;
  align-items: center;

  transition: .2s;
}

.link-2::before {
  content: '×';

  transform: translateY(-.1rem);
}

.link-2:hover,
.link-2:focus {
  border-color: hsla(0, 0%, 100%, .6);
  transform: translateY(-.2rem);
}

/* Second Version Link */
/* =============================================== */
.second-version-link,
.second-version-link:link {
  color: hsl(236, 50%, 50%);
  padding: .8rem 1.6rem .8rem .2rem;
  border-bottom: 2px solid hsl(236, 50%, 50%);

  font-size: 1.4rem;
  font-weight: bold;

  position: absolute;
  top: 4rem;
  right: 4rem;
}

.second-version-link::after {
  content: '\2197';

  position: absolute;
  top: 0;
  right: 0;

  font-size: .9em;
}

.abs-site-link {
  position: fixed;
  bottom: 20px;
  left: 20px;
  color: hsla(0, 0%, 0%, .6);
  font-size: 1.6rem;
}
// @AbubakerSaeed96 (twitter)
// abubakersaeed.netlify.com
// =========================

// suppose javascript is off and there is some important content we want our users to see via modal, we can use this.

// Thank You for Viewing.

// CSS Modals (Modal v2) Pen Link Added
// That one contains 3 different modals and is in dark mode.

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.