MeshCentral/public/styles/messenger.css

.topButton {
    cursor: pointer;
    border: none;
    margin: 3px;
    float: right;
    border-radius: 3px;
    height: 32px;
    width: 32px;
}

    .topButton:hover {
        background-color: lightgray;
    }

.icon1 {
    background: url(../images/messenger32.png) 0px 0px;
    background-color: gray;
}

.icon2 {
    background: url(../images/messenger32.png) -32px 0px;
    background-color: gray;
}

.icon3 {
    background: url(../images/messenger32.png) -64px 0px;
    background-color: gray;
}

.icon4 {
    background: url(../images/messenger32.png) -96px 0px;
    background-color: gray;
}

.icon5 {
    background: url(../images/messenger32.png) -128px 0px;
    background-color: gray;
}

.icon6 {
    background: url(../images/messenger32.png) -160px 0px;
    background-color: gray;
}

.icon7 {
    background: url(../images/messenger32.png) -192px 0px;
    background-color: gray;
}

.icon8 {
    background: url(../images/messenger32.png) -224px 0px;
    background-color: gray;
}

.icon9 {
    background: url(images/messenger32.png) -256px 0px;
    background-color: gray;
}

.icon10 {
    background: url(../images/messenger32.png) -288px 0px;
    background-color: gray;
}