phantasmal-world/src/core/gui/ToolBar.css

.core_ToolBar {
    box-sizing: border-box;
    display: flex;
    flex-direction: row;
    align-items: center;
    border-bottom: solid var(--border-color) 1px;
}

.core_ToolBar > * {
    margin: 2px 1px;
}

.core_ToolBar > .core_ToolBar_group {
    margin: 2px 3px;
    display: flex;
    flex-direction: row;
    align-items: center;
}

.core_ToolBar > .core_ToolBar_group > * {
    margin: 0 2px;
}