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<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, inital-scale=1.0" />
    <!-- <link rel="stylesheet" href="17.css" /> -->
    <title>CSS</title>
  </head>
  <body>
    <ul class="menu">
      <div class="toggle"><ion-icon name="add-outline"></ion-icon></div>
      <li style="--i: 0; --clr: #ff2972">
        <a href="#"><ion-icon name="home-outline"></ion-icon></a>
      </li>
      <li style="--i: 1; --clr: #fee800">
        <a href="#"><ion-icon name="person-outline"></ion-icon></a>
      </li>
      <li style="--i: 2; --clr: #04fc43">
        <a href="#"><ion-icon name="settings-outline"></ion-icon></a>
      </li>
      <li style="--i: 3; --clr: #fe00f1">
        <a href="#"><ion-icon name="mail-outline"></ion-icon></a>
      </li>
      <li style="--i: 4; --clr: #00b0fe">
        <a href="#"><ion-icon name="key-outline"></ion-icon></a>
      </li>
      <li style="--i: 5; --clr: #fea600">
        <a href="#"><ion-icon name="videocam-outline"></ion-icon></a>
      </li>
      <li style="--i: 6; --clr: #a529ff">
        <a href="#"><ion-icon name="game-controller-outline"></ion-icon></ion-icon></a>
      </li>
      <li style="--i: 7; --clr: #01bdab">
        <a href="#"><ion-icon name="camera-outline"></ion-icon></a>
      </li>
    </ul>
    <script type="module" src="https://unpkg.com/ionicons@5.5.2/dist/ionicons/ionicons.esm.js"></script>
    <script nomodule src="https://unpkg.com/ionicons@5.5.2/dist/ionicons/ionicons.js"></script>
    <script>
        let toggle = document.querySelector(".toggle");
        let menu = document.querySelector(".menu");
        toggle.onclick = function(){
            menu.classList.toggle("active")
        }
    </script>
  </body>
</html>

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

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: #2f363e;
}

.menu {
  position: relative;
  width: 280px;
  height: 280px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.menu li {
  position: absolute;
  left: 0;
  list-style: none;
  transition: 0.5s;
  transition-delay: calc(0.1s * var(--i));
  transform-origin: 140px;
  transform: rotate(0deg) translateX(110px);
}

.menu.active li {
  transform: rotate(calc(360deg / 8 * var(--i))) translateX(0px);
}

.menu li a {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 60px;
  height: 60px;
  color: var(--clr);
  border: 2px solid var(--clr);
  border-radius: 50%;
  font-size: 1.5em;
  transform: rotate(calc(360deg / -8 * var(--i)));
  transition: 1s;
}

.menu li a:hover {
  transition: 0s;
  background: var(--clr);
  color: #333;
  box-shadow: 0 0 10px var(--clr), 0 0 30px var(--clr), 0 0 50px var(--clr);
}

.menu .toggle {
  position: absolute;
  width: 60px;
  height: 60px;
  background: #2f363e;
  border: 2px solid #fff;
  border-radius: 50%;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 10000;
  font-size: 2em;
  transition: transform 1.25s;
}

.menu.active .toggle {
  transform: rotate(315deg);
}