Thành viên:Đức Anh/Nháp 60

    Tủ sách mở Wikibooks
    * {
      box-sizing: border-box;
    }
    *::before, *::after {
      box-sizing: border-box;
    }
    
    body {
      font-family: "Rubik", sans-serif;
      font-size: 1rem;
      line-height: 1.5;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0;
      min-height: 100vh;
      background: #fff;
    }
    
    .button {
      position: relative;
      display: inline-block;
      cursor: pointer;
      outline: none;
      border: 0;
      vertical-align: middle;
      text-decoration: none;
      font-size: inherit;
      font-family: inherit;
    }
    .button learn-more {
      font-weight: 600;
      color: #382b22;
      text-transform: uppercase;
      padding: 1.25em 2em;
      background: #fff0f0;
      border: 2px solid #b18597;
      border-radius: 0.75em;
      transform-style: preserve-3d;
      transition: transform 150ms cubic-bezier(0, 0, 0.58, 1), background 150ms cubic-bezier(0, 0, 0.58, 1);
    }
    .button learn-more::before {
      position: absolute;
      content: "";
      width: 100%;
      height: 100%;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: #f9c4d2;
      border-radius: inherit;
      box-shadow: 0 0 0 2px #b18597, 0 0.625em 0 0 #ffe3e2;
      transform: translate3d(0, 0.75em, -1em);
      transition: transform 150ms cubic-bezier(0, 0, 0.58, 1), box-shadow 150ms cubic-bezier(0, 0, 0.58, 1);
    }
    .button learn-more:hover {
      background: #ffe9e9;
      transform: translate(0, 0.25em);
    }
    .button learn-more:hover::before {
      box-shadow: 0 0 0 2px #b18597, 0 0.5em 0 0 #ffe3e2;
      transform: translate3d(0, 0.5em, -1em);
    }
    .button learn-more:active {
      background: #ffe9e9;
      transform: translate(0em, 0.75em);
    }
    .button learn-more:active::before {
      box-shadow: 0 0 0 2px #b18597, 0 0 #ffe3e2;
      transform: translate3d(0, 0, -1em);
    }