Popup / 11 フローティング

デザイン見本

フローティングアクションボタン（FAB）のような丸みを帯びた形状が特徴です。カラフルなボーダーと拡大縮小アニメーション（scale）により、アプリライクで軽快な操作感を演出します。

実装コード

HTML

<div id="popup-container-11">
  <button id="popup-btn-11">Floating Action</button>
</div>
<div id="popup-11" class="popup-11">
  <div class="popup-content-11">
    <p>Floating Action Popup</p>
    <p>浮遊感のあるアクション指向のポップアップウィンドウです。</p>
  </div>
</div>

CSS

/* Button Style */
#popup-btn-11 {
  cursor: pointer;
  border: none;
  padding: 12px 24px;
  border-radius: 16px;
  font-weight: 600;
  display: block;
  margin: 0 auto;
  width: 180px;
  color: #fff;
  background-color: #e91e63;
}

#popup-btn-11:hover {
  opacity: 0.5;
}

/* Popup Style */
.popup-11 {
  position: fixed;
  bottom: -100%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1001;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  max-width: 90%;
  max-height: 90%;
}

.popup-11.active {
  opacity: 1;
  visibility: visible;
  bottom: 20px;
  transform: translateX(-50%);
  animation: popupShowHide11 3.4s ease forwards;
}

@keyframes popupShowHide11 {
  0% {
    opacity: 0;
    transform: translateX(-50%) translateY(100%) scale(0.8);
  }
  20% {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1.1);
  }
  30% {
    transform: translateX(-50%) translateY(0) scale(1);
  }
  80% {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(100%) scale(0.8);
  }
}

.popup-content-11 {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 30px;
  border-radius: 25px;
  text-align: center;
  position: relative;
  min-width: 300px;
  box-shadow: 0 20px 40px rgba(102, 126, 234, 0.3);
  border: 2px solid rgba(255, 255, 255, 0.2);
  animation: floatingAction 3s ease-in-out infinite;
}

@keyframes floatingAction {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-8px);
  }
}

.popup-content-11::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4);
  border-radius: 27px;
  z-index: -1;
  animation: borderRotate 4s linear infinite;
}

@keyframes borderRotate {
  0% {
    filter: hue-rotate(0deg);
  }
  100% {
    filter: hue-rotate(360deg);
  }
}

.popup-content-11 p:first-child {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 15px;
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  animation: textPulse 2s ease-in-out infinite;
}

@keyframes textPulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.popup-content-11 p:last-of-type {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 25px;
  line-height: 1.6;
}

var btn = document.getElementById('popup-btn-11');
var popup = document.getElementById('popup-11');

if (btn && popup) {
  btn.addEventListener('click', function () {
    popup.classList.add('active');
  });

  popup.addEventListener('animationend', function () {
    popup.classList.remove('active');
  });
}