.my-hint {
    display: inline-block;
    padding: 5px;
    position: relative;
    left: -95px;
    bottom: 70px;
    width: 195px;
    font-size: 0.8rem;
    color: #fff;
    text-align: center;
    vertical-align: middle;
    background-color: #2269A2;
    border-radius: 5px;
}
.coord {
    font-size:1rem;
    margin-left: 10px;
    cursor: pointer;
}
.coord::before {
    width: 5px;
    height: 5px;
    margin-right: .5em;
    vertical-align: .255em;
    content: "";
    border-top: 1px solid;
    border-right: 1px solid;
    border-left: none;
    float: left;
    color: #fff;
    border-color: #000;
    transform: rotate(135deg);
    top: 9px;
    position: relative;
}
.show.coord::before {
    transform: rotate(-45deg);
}