.marker-label {
    color: #ffffff !important;
    font-size: 18px !important;
    font-family: sans-serif;
    font-weight: bold;
    position: relative;
    top: -5px; /* 上下方向への位置調整 */
    left: 2.5px; /* 左右方向への位置調整 */
}

.marker-label-check {
    color: #ffffff !important;
    font-size: 18px !important;
    font-family: sans-serif;
    font-weight: bold;
    position: relative;
    top: -5px; /* 上下方向への位置調整 */
    left: 2.5px;
}

.marker-label-cluster {
    color: #ffffff !important;
    font-size: 18px !important;
    font-family: sans-serif;
    font-weight: bold;
    position: relative;
}