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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

HTML

              
                <!-- markup
button, used as a toggle
nav, navigation opened/closed following a long press on the button itself
-->
<button>
  <!-- svg describing a plus sign -->
  <svg viewBox="-50 -50 100 100" width="100" height="100">
    <circle r="50" fill="hsl(0, 0%, 100%)" />
    <g fill="none" stroke="currentColor" stroke-width="4" stroke-linecap="round">
      <path d="M -15 0 h 30 m -15 -15 v 30" />
    </g>
  </svg>
</button>

<nav>
  <!-- rounded rectangle describing the different sections of the page through individual icons -->
  <svg viewBox="0 0 260 100" width="260" height="100">
    <g fill="hsl(0, 0%, 100%)">
      <rect width="260" height="85" rx="42.5" />
      <g stroke="hsl(0, 0%, 100%)" stroke-width="10" stroke-linejoin="round">
        <g transform="translate(130 80)">
          <path d="M -15 0 l 15 15 15 -15 z" />
        </g>
      </g>

      <g>
        <g transform="translate(0 42.5)">
          <!-- wrap each icon in an anchor link element to make it select-able -->
          <a href="#">
            <!-- ! setting currentColor before the anchor link elements won't work as the anchor link would introduce its default color  -->
            <g transform="translate(60 0)">
              <g stroke="currentColor" stroke-width="3" stroke-linecap="round" stroke-linejoin="round">
                <g fill="none">
                  <circle r="4.5" cx="-7" cy="-7" />
                  <circle r="4.5" cx="-7" cy="7" />
                </g>
                <g fill="currentColor">
                  <path id="scissor--half" d="M -3 -2 l 10 10 a 4 4 0 0 0 4 0 l -13 -13" />
                  <use href="#scissor--half" transform="scale(1 -1)" />
                </g>
              </g>
              <rect x="-15" y="-15" width="30" height="30" opacity="0" fill="hsl(0, 0%, 0%)" />
            </g>
          </a>
          <a href="#">
            <g transform="translate(130 0)">
              <g stroke="currentColor" stroke-width="3" stroke-linecap="round" stroke-linejoin="round">
                <g fill="none">
                  <path d="M -10 8 v -18 a 2 2 0 0 1 2 -2 h 13" />
                </g>
                <g fill="currentColor">
                  <path d="M -2 -6 h 9 l 4.5 4.5 v 12 a 2 2 0 0 1 -2 2 h -11.5 a 2 2 0 0 1 -2 -2 v -14.5 a 2 2 0 0 1 2 -2" />
                </g>
              </g>
              <rect x="-15" y="-15" width="30" height="30" opacity="0" fill="hsl(0, 0%, 0%)" />
            </g>
          </a>
          <a href="#">
            <g transform="translate(210 0)">
              <g stroke="currentColor" stroke-width="3" stroke-linecap="round" stroke-linejoin="round">
                <g fill="none">
                  <path d="M -5.5 8 h -3 a 2 2 0 0 1 -2 -2 v -16 a 2 2 0 0 1 2 -2 h 3 a 3 3 0 0 1 3 -3 h 2 a 3 3 0 0 1 3 3 h 3 a 2 2 0 0 1 2 2 v 2.5" />
                </g>
                <g fill="currentColor">
                  <path d="M -2 -6 h 9 l 4.5 4.5 v 12 a 2 2 0 0 1 -2 2 h -11.5 a 2 2 0 0 1 -2 -2 v -14.5 a 2 2 0 0 1 2 -2" />
                </g>
              </g>
              <rect x="-15" y="-15" width="30" height="30" opacity="0" fill="hsl(0, 0%, 0%)" />
            </g>
          </a>
        </g>
      </g>
    </g>
  </svg>
</nav>
              
            
!

CSS

              
                /* custom-properties describing the colors used throughout the project
&& the time after which the button is considered active */
:root {
  --gradient-start: hsl(300, 100%, 70%);
  --gradient-end: hsl(340, 85%, 60%);
  --accent: hsl(320, 92.5%, 65%);
  --delay: 2s;
  --easeInCirc: cubic-bezier(0.6, 0.04, 0.98, 0.335);
  --easeOutCirc: cubic-bezier(0.075, 0.82, 0.165, 1);
  --easeInOutCubic: cubic-bezier(0.645, 0.045, 0.355, 1);
}

* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

/* display the contents in a reverse column, so to have the navigation atop the button
! this messes up the side describing the margin, see the owl selector
*/
body {
  min-height: 100vh;
  display: flex;
  flex-direction: column-reverse;
  justify-content: center;
  align-items: center;
  color: hsl(0, 0%, 20%);
  background: linear-gradient(to bottom right, var(--gradient-start), var(--gradient-end));
}

body > * + * {
  margin-bottom: 0.75rem;
}

button {
  width: 80px;
  height: 80px;
  display: block;
  color: var(--accent);
  border: none;
  background: none;
  border-radius: 50%;
  filter: drop-shadow(0 0 8px hsla(0, 0%, 0%, 0.2));
  outline: none;
  position: relative;
  z-index: 5;
}
button svg {
  /* transition the rotation of the + sign with a considerable duration
  use a timing function which snaps toward the end
  */
  transition: all 0.2s var(--easeInOutCubic);
  width: 100%;
  height: 100%;
  display: block;
}
/* in favor of the default outline use a pseudo element to add a semitransparent border around the button */
button:after {
  z-index: -5;
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: hsla(0, 0%, 100%, 0.3);
  border-radius: inherit;
  transform: scale(1);
  transition: all 0.2s var(--easeInOutCubic);
}
button:focus:after,
button:hover:after {
  transform: scale(1.2);
}
/* with a second pseudo element, show momentarily a set of particles
! only following the active state
*/
button:before {
  z-index: -5;
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='-50 -50 100 100' width='100' height='100'%3E%3Cg fill='hsl(0, 0%25, 100%25)' stroke-width='1' stroke-linecap='round' stroke-linejoin='round' stroke='hsl(0, 0%25, 100%25)'%3E%3Cg%3E%3Ccircle cx='-30' r='4' /%3E%3Ccircle cx='20' cy='35' r='3' /%3E%3Ccircle cx='40' cy='15' r='1' /%3E%3Ccircle cx='-10' cy='-30' r='1' /%3E%3Crect transform='translate(38 -10) rotate(-15)' x='-3.5' y='-3.5' width='7' height='7' /%3E%3Crect transform='translate(-35 -30) rotate(10)' x='-3' y='-3' width='6' height='6' /%3E%3C/g%3E%3Cg %3E%3Cpath transform='translate(-10 35) rotate(12)' d='M -3 3 l 6 0 -3 -6 z' /%3E%3Cpath transform='translate(-35 25) rotate(50)' d='M -4 0 h 8 m -4 -4 v 8' /%3E%3Cpath transform='translate(25 -30) rotate(50)' d='M -4 0 h 8 m -4 -4 v 8' /%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  background-size: 100%;
  transform: scale(1);
  opacity: 1;
  /* to have the transition only one way, be sure to describe it as the active state is enabled */
  transition: none;
}

/* as the button is pressed, rotate the button
! apply the rotation also through a class, which is added after the transition has had a change to complete
*/
button:active svg,
button.active svg {
  transform: rotate(45deg);
  transition: all var(--delay) var(--easeInCirc);
}

/* always as the button is being pressed, increase the area of the pseudo element
! use a similar timing function
*/
button:active:after,
button.active:after {
  transform: scale(2);
  opacity: 0;
  transition: all var(--delay) var(--easeInCirc);
}
/* finally and momentarily show the particles described by the before pseudo element
! use a different timing function for the opacity than for the transform
opacity should change slowly at first, while transform should initially move fast
*/
button:active:before,
button.active:before {
  transition-property: transform, opacity;
  transition-duration: 0.55s, 0.5s;
  transition-delay: var(--delay);
  transition-timing-function: var(--easeOutCirc), var(--easeInCirc);
  transform: scale(2);
  opacity: 0;
}

/* target the navigation following the button (shown earlier, but appearing later in the DOM)
remove it from reach with visibility hidden
*/
button + nav {
  z-index: 5;
  filter: drop-shadow(0 2px 8px hsla(0, 0%, 0%, 0.2));
  /* transition the navigation when the class of .active is applied on the button
  scale from the bottom
  */
  transform-origin: 50% 100%;
  transition: all 0.3s var(--easeOutCirc);
  /* to apply the delay only as the class active is removed be sure to remove it
  when the class is actually added
  */
  transition-delay: 0.25s;
  transform: scale(0);
  opacity: 0;
  visibility: hidden;
}
button.active + nav {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
  transition-delay: 0s;
}
/* style the icons nested in the anchor link elements with a subdued color
reset opacity and color on hover/focus
 */
nav a {
  color: hsl(0, 0%, 50%);
  opacity: 0.4;
  transition: all 0.2s var(--easeInOutCubic);
  outline: none;
}
nav a:focus,
nav a:hover {
  color: var(--accent);
  opacity: 1;
}

              
            
!

JS

              
                const button = document.querySelector('button');
const delay = 2000;
let timeout;

// function removing or adding (after a delay) a class of active
function toggleActive() {
  if (button.classList.contains('active')) {
    button.classList.remove('active');
  } else {
    timeout = setTimeout(() => {
      button.classList.add('active');
      timeout = null;
    }, delay);
  }
}

// function removing the existing, if any, timeout
// this is made necessary in a situation where the press is removed before the timeout has run out
function removeActive() {
  if (timeout) {
    clearTimeout(timeout);
  }
}

// handle presses through the mouse cursor
// ! to replicate the spacebar, a few more lines of JS are necessary
button.addEventListener('mousedown', () => toggleActive());
button.addEventListener('mouseup', () => removeActive());

/* KEY events */
// trigger the active functions only following a press on the spacebar
const KEY_CODE = 32;
// use a boolean to avoid running the function repeatedly (keydown runs multiple times while the spacebar is being pressed)
let isKeydown = false;

// hitting spacebar for the first time, use the function to add/remove the class
button.addEventListener('keydown', ({keyCode}) => {
  if(keyCode === KEY_CODE && !isKeydown) {
    isKeydown = true;
    toggleActive();
  }
});
// when the spacebar is released, remove the existing, if any timeout
button.addEventListener('keyup', ({keyCode}) => {
  if(keyCode === KEY_CODE) {
    isKeydown = false;
    removeActive();
  }
});
              
            
!
999px

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