body {
    background-color: #252525;
}

.bground1 {
    margin: 0px;
    padding: 0px;
    flex-wrap: wrap;
}

.img-fluid {
    width: 25%;
    height: 25%;
    margin: 10px;
    border: 20px;
    flex-wrap: wrap;
    flex-direction: row;
    justify-content: center
    transition: all 1s;

}

.img-fluid:hover {
    transform:translateY(20px);
}

.nav nav-pills flex-column flex-sm-row {
    background-color: #606060;
}

.jumbotron, .my-4 {
    background-color: #252525;
    color: #ebebeb;
}