#page {
    float: left;
    width: 100%;
}

.dafo {
    position: relative;
}

.dafo h1 {
    text-align: center;
    text-shadow: 0 1px 1px #000;
    font-size: 22px;
    font-weight: 600;
}

#presentation {
    justify-content: center;
    align-items: center;
    width: 100%;
    display: grid;
    grid-template-columns: 30% 30% 30%;
    justify-items: center;
    height: 92vh;
}

#presentation-text-info {
    justify-content: space-around;
    align-items: end;
    display: grid;
    justify-items: start;
    align-content: space-evenly;
    height: 92vh;
}

#presentation-text-info p {
    border: 2px solid #cc0000;
    border-radius: 5px;
    margin: 5%;
    padding: 5%;
    font-size: 20px;
    height: 20vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

#video-dafo {
    width: 100%;
    height: 92vh;
    overflow: hidden;
    display: flex;
    align-items: center;
}

#presentation-why {
    float: left;
    width: 100%;
}

#presentation-why h2 {
    margin-top: 5%;
}

#presentation-text {
    float: left;
    width: 70%;
}

#presentation-text h4 {
    margin: 5% 0;
}

#presentation-text ul {
    list-style: none;
    padding: 0 0 0 30px;
    margin: 0 0 35px;
}

#presentation-text ul li {
    display: block;
    margin-bottom: 10px;
    position: relative;
    padding-left: 15px;
    font-size: 16px;
    line-height: 23px;
    font-family: 'Helios', sans-serif;
}

#presentation-text ul li:before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: red;
    position: absolute;
    left: 0;
    top: 8px;
}

@media (orientation: portrait) {
    #page {
        margin-top: 20%;
    }
    h1 {
        font-size: 5vw;
        text-shadow: 0 1px 0 #000;
    }
    h2 {
        font-size: inherit;
        text-shadow: none;
    }
    #presentation-1 {
        width: 98%;
        margin: 1%;
    }
    #presentation-1 p,
    #presentation-3 p {
        font-size: inherit;
        border-radius: 3vw;
    }
    #presentation-2 {
        width: 48%;
        margin-left: 26%;
    }
    #presentation-3 {
        width: 98%;
        margin: 1%;
    }
    #presentation-text {
        width: 90%;
        margin-left: 5%;
    }
}