.IconMenuButton {
    position: relative;
    width: 32px;
    height: 32px;
    margin: 4px;
    padding: 0;
    box-sizing: border-box;
}

.IconMenuButton>.button {
    width: 100%;
    height: 100%;
    color: #555;
    background: none;
    margin: 0;
    padding: 0;
    border: 1px solid #ccc;
    border-radius: 2px;
    display: block;
    cursor: pointer;
}

.IconMenuButton:hover>.button {
    color: #3399ff;
    background: none;
    border: 1px solid #3399ff;
}

.IconMenuButton.hidden {
    display: none;
}

.IconMenuButton >.button>.iconfont {
    font-size: 20px;
    pointer-events: none;
}

.IconMenuButton::after {
    position: absolute;
    left: 0;
    top: 0;
    width: 24px;
    height: 26px;
    content: '';
}

.IconMenuButton>.menu {
    position: absolute;
    margin-top: 2px;
    display: none;
    z-index: 100;
}

.IconMenuButton:hover>.menu {
    display: block;
}