:root {
    --tools-menu-h: 30px;
    --tools-menu-mw: 150px;
}

.block-toolsext .content .tools-menu {
    display: flex;
    
    height: var(--tools-menu-h);
    width: 100%;
}

.block-toolsext .content .tools-menu .item {
    display: flex;
    align-items: center;
    justify-content: center;
    
    flex: 1;
    max-width: var(--tools-menu-mw);
    
    background-color: transparent;

    cursor: pointer;
}

.block-toolsext .content .tools-menu .item > * {
    cursor: pointer;
}

.block-toolsext .content .tools-menu .item.selected {
    background-color: var(--text-color);
    background-color: var(--c0);
}

.block-toolsext .content .tools-content {
    width: 100%;
    height: calc(100% - var(--tools-menu-h));
}

.block-toolsext .content .tools-content iframe {
    width: 100%;
    height: 100%;
    
    border: 0;
}