body {
    font-family: 'Merriweather Sans', sans-serif;
}

#mynetwork {
    width: 600px;
    height: 400px;
    border: 1px solid lightgray;
    border-radius: 10px;
}
/* to center block element */
.center-block {
       margin-left:auto;
       margin-right:auto;
       display:block;
}
/* to center inline element */
.text-center {
    text-align:center
}

.title {
    font-weight: 900;
    font-size: 4rem;
}

.hidden {
    display: none;
}