吸引注意力的动画

<p><strong>单击</strong> 按钮以激活其动画。</p>
<div class='btn-container'>
  <button class='btn btn--shockwave is-active'>
    Shockwave
  </button>
  <button class='btn btn--jump'>
    Jump
  </button>
  <button class='btn btn--pulse'>
    Pulse
  </button>
  <button class='btn btn--blink'>
    Blink
  </button>
  <button class='btn btn--wiggle'>
    Wiggle
  </button>
  <button class='btn btn--wut'>
    Hatching Alien
  </button>
</div>
<p><strong>单击</strong> 按钮以激活其动画。</p>
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