.indicador {
    border: 1px solid;
}
.fuera {
    border-color: slategray;
    color: slategray;
}
.estacion {
    display: inline-flex;
    border: 2px solid;
    border-radius: 6px;
    padding: 3px;
    margin: 3px
}
.estacion:hover {
    border: 2px solid;
    border-color: brown;
}
/* MEJORADO */
.botones {
    display: flex;
    justify-content: left;
    align-items: left;
    height: auto;
    width: 100%;
    margin: 1rem;
    flex-direction: row;
    flex-wrap: wrap;
}
.hover-target {
    position: relative;
    display: inline-block;
    margin: 2px;
    padding: 5px;
    border: 1px solid #000;
    border-radius: 5px;
    cursor: pointer;
}
.tooltip {
    position: absolute;
    top: 100%;
    left: 2%;
    margin-left: 0.2rem;
    width: 300px;
    border: 2px solid #555;
    border-radius: 5px;
    background-color: #000;
    color: back;
    text-align: center;
    padding: 5px;
    visibility: hidden;
    opacity: 0;
    z-index: 10;
    transition: opacity 0.2s ease-in-out;
}
.hover-target:hover .tooltip {
    visibility: visible;
    opacity: 1;
}