.list-selector {
    display: inline-block;
    width: 22px;
    height: 22px;
    border: 1px solid #88bcd4;
    color: #ffffff;
    text-align: center;
    font-size: 16px;
    font-weight: normal;
    line-height: 3px;
}
.list-selector span {
    position: absolute;
    left: auto;
    right: auto;
    width: 1px;
    height: 1px;
}
.list-selector span i {
    position: relative;
    top: 2px;
}
.list-selector:hover span i {
    top: 1px;
}
.list-selector[mode="indeterminate"] ,.list-selector[mode="check"] {
    border: 1px solid #00bcd4;
    background-color: #00bcd4;
}
.list-selector:hover ,.list-selector[mode="indeterminate"]:hover ,.list-selector[mode="check"]:hover {
    border: 2px solid #00bcd4;
}
.list-selector[mode="indeterminate"] i {
    left: 6px;
}
.list-selector[mode="check"] i {
    left: 8px;
}