.menu-superior > li:nth-child(3){
    background-color: rgba(0,0,0,.4);
    box-shadow: 0 0 .1em #000;
    border-radius: .2em;
    font-weight: bold;
}

.principal {
    height: auto;
}

.conteudo {
    width: 100%;
}

.conteudo p {
    padding-left: 2.3em;
    margin-bottom: 1em;
}

.parceiros {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    padding: 0 1em;
    text-align: center;
}

.parceiros li {
    width: 15%;
    box-sizing: border-box;
    padding: 0 1em;
    margin-right: 1em;
    margin-bottom: 1em;
}

.parceiros > li > a {
    color: black;
    text-decoration: none;
    font-size: 1em;
}

.legenda-parceiros {
    padding-top: .5em;
}

.parceiros img {
    width: 100%;
    height: 50%;
    box-shadow: 0 0 4px #000;
}