.navigations {
display: flex;
flex-wrap: wrap;
}
.navigations > span {
    width: 30%;
    height: 315px;  
    background-color: #2d4e61;
    margin: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-size: cover;
    border-radius: 15px;
}
.navigations span a{
    display: block;
    width: 100%;
    height: 100%;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    color: white;
}