h1 {
    font-size: 30px;
    text-align: center;
    color: #2f4d59;
    font-family: "Open Sans";
    padding-bottom: 20px;
}
h2 {
    font-size: 26px;
    text-align: center;
    color: #2f4d59;
    font-family: "Open Sans";
    padding: 20px;
}
h6{
     font-size: 16px;
     font-weight: 500;
}
.block {
    font-family: "Open Sans";
    color: #678293;
    font-size: 14px;
}
.presentation {
    margin-bottom: 30px;
}
.presentation img {
    width: 165px;
    margin-bottom: 15px;
    border: 1px solid #d5d7d8;
}