body { 
    padding: 0; 
    margin: 0;
    background-color: #333;
}

.conteudo {
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    align-content: center;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.conteudo .logo { 

    position: relative;

    background-image: url("../imagens/logo-demuxa.png"); 

    width: 618px;
    height: 178px;
    
    background-size: 100% 100%;

    margin-bottom: 20px;

}

.conteudo li {
    float: left;
    list-style: none;
    font-size: 33px;
    color: #FFF;
    background-color: rgba(255,255,255,0.5);
    padding: 25px 27px;
    margin: 10px;
    border-radius: 50%;
    width: 37px;
    text-align: center;
}
.conteudo li:hover {
    background-color: #333;
}


.conteudo .powerby {
    text-align: center;
    padding: 20px;
    color: #FFF;
    font-size: 1.2rem;
    font-family: Arial, Helvetica, sans-serif;
    font-weight: 200;
    margin-top: 20px;

}

#video-demi {
    width: 100vw;
    height: 100vh;
    object-fit: cover;
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    z-index: -1;
}