a.wd-chat-btn span.fusion-button-text {
    line-height: 40px;
}

html, body {
    height: 100% !important;
}
body {
    margin: 0;
}

#container {
    display: flex;
    height: 100%;
}

.column.left {
    height: 100%;
    width: 100px;
    flex: 0 0 100px;
}

.column.right {
    width: 100px;
    flex: 0 0 100px;
}

.column.center {
    flex: 1;
    text-align: center;
}

.column.left,
.column.right {
    background: orange;
    text-align: center;
}