jrtechs-vis/lib/network/css/network-navigation.css

div.network-navigation {
    width:34px;
    height:34px;
    -moz-border-radius: 17px;
    border-radius: 17px;
    position:absolute;
    display:inline-block;
    background-position: 2px 2px;
    background-repeat:no-repeat;
    cursor: pointer;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

div.network-navigation:hover {
    box-shadow: 0px 0px 3px 3px rgba(56, 207, 21, 0.30);
}

div.network-navigation:active {
    box-shadow: 0px 0px 1px 3px rgba(56, 207, 21, 0.95);
}

div.network-navigation.up {
    background-image: url("img/network/upArrow.png");
    bottom:50px;
    left:55px;
}
div.network-navigation.down {
    background-image: url("img/network/downArrow.png");
    bottom:10px;
    left:55px;
}
div.network-navigation.left {
    background-image: url("img/network/leftArrow.png");
    bottom:10px;
    left:15px;
}
div.network-navigation.right {
    background-image: url("img/network/rightArrow.png");
    bottom:10px;
    left:95px;
}
div.network-navigation.zoomIn {
    background-image: url("img/network/plus.png");
    bottom:10px;
    right:15px;
}
div.network-navigation.zoomOut {
    background-image: url("img/network/minus.png");
    bottom:10px;
    right:55px;
}
div.network-navigation.zoomExtends {
    background-image: url("img/network/zoomExtends.png");
    bottom:50px;
    right:15px;
}