section {
    font-size: 14px;
}
#chi-siamo:before {
    background-image: url('/images/backgrounds/gym.jpg');
}
#perche-noi:before {
    background-image: url('/images/backgrounds/gym.jpg');
}
#continuo-miglioramento:before {
    background-image: url('/images/backgrounds/gym.jpg');
}

section.adapt-size {
    min-height: 100vh;
    display: table;
    vertical-align: middle;
    width: 100%;
    box-sizing: border-box;
}
.transparence-background {
    position: relative;
    background-color: rgba(39,37,37,.8);
}
.transparence-background:before {
    content: "";
    position: absolute;
    z-index: -1;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background-attachment: fixed !important;
    background-size: cover !important;
    background-repeat: no-repeat !important;
    background-position: 50% !important;
}
section.adapt-size > div.adapt-size-inner {
    display: table-cell;
    vertical-align: middle;
}

div.content-wrapper {
    max-width: 900px;
    margin: auto;
}

section div.content-wrapper p, section div.content li {
    line-height: 2;
}
div.content-wrapper {
    padding: 40px 20px;
}

@media only screen and (max-width: 768px) {
    .transparence-background:before {
        background-attachment: unset !important;
    }
}