header{
    padding-bottom: 32px;
}
header nav.navbar{
    display: flex;
    justify-content: space-between;
    align-items: center;
}
header nav.navbar .informacoes{
    margin: 0px;
}
header nav.navbar .navbar-collapse .navbar-nav li a {
    margin-right: .8rem;
    margin-left: .8rem;
}
header nav.navbar .navbar-collapse .redes li a{
    margin-right: .5rem;
    margin-left: .5rem;
    padding-top: 10.5px !important;
}
main .servicos .item .conteudo p, main .servicos .item .conteudo h2{
    padding-right: 20px;
}
header nav.navbar .navbar-collapse .navbar-nav li a {
    padding: 19px 0px 14px 0px;
}

header nav.navbar .navbar-collapse .navbar-nav li a {
    border-bottom: 0px;
    border-top: 5px solid #0d144d;
    padding: 14px 0px 19px 0px;
}
header nav.navbar .navbar-collapse .navbar-nav li a:hover, header nav.navbar .navbar-collapse .navbar-nav li a:active {
    border-bottom: 0px;
    border-top: 5px solid #ffc700;
}
header nav.navbar .navbar-collapse{
    border-bottom: 5px solid #0d144d;
}
header nav.navbar .navbar-collapse .redes li a{
    border: 0px !important;
    padding-bottom: 13px !important;
}
main .interno{
    margin-top: 185px;
}

<style>
.certificados{
    display:flex;
    flex-wrap:wrap;
}

.item-certificado{
    width:20%;
    padding:15px;
    text-align:center;
    box-sizing:border-box;
}

.item-certificado img{
    width:194px;
    max-width:100%;
    display:block;
    margin:0 auto 8px auto;
}

.item-certificado span{
    display:block;
    font-weight:600;
}

@media(max-width:991px){
.item-certificado{
    width:33.33%;
}
}

@media(max-width:600px){
.item-certificado{
    width:50%;
}
}