```html
.interface {
background-color: rgba(255, 255, 255, 0.3);
border-radius: 10px;
display: flex;
justify-content: center;
align-items: center;
font-size: 20px;
color: #FFF;
animation: float 5s ease-in-out infinite; // Animação flutuação
}
.interface::after,.interface::before {
content: ""; // Conteúdo vazio
position: absolute;
top: -20px;
left: 50%;
transform: translateX(-50%);
width: 20px;
height: 20px;
background-color: rgba(255, 255, 255, 0.7);
border-radius: 50%;
animation: pulsate 2s ease-in-out infinite;
}
Floating Interface
```