colouring-montreal/app/src/frontend/map/legend.css

/**
 * Map legend
 */
.map-legend {
    position: absolute;
    bottom: 2.5rem;
    right: 10px;
    z-index: 1000;

    min-width: 12rem;
    max-height: 50%;
    display: flex;
    flex-direction: column;

    background: white;
    border-radius: 4px;
    padding: 0.5rem 0rem 0.25rem;
    border: 1px solid #fff;
    box-shadow: 0px 0px 1px 1px #222222;
}

.map-legend * {
    flex: 0;
}

.map-legend .logo {
    display: none;
}
@media (min-width: 768px) {
    .map-legend .logo {
        display: block;
    }
}

/* Prevent legend from overlapping with attribution */
@media (min-width: 706px){
    .map-legend {
        bottom: 1.5rem;
    }
}
@media (min-width: 768px) {
    .map-legend {
        bottom: 2.5rem;
    }
}
@media (min-width: 1072px){
    .map-legend {
        bottom: 1.5rem;
    }
}

.map-legend .h4,
.map-legend p,
.data-legend {
    padding: 0 0.5rem;
}
.map-legend p {
    margin: 0.25rem 0 0.5rem;
}
.data-legend {
    overflow: auto;
    list-style: none;
    margin-bottom: 0;
    flex: 1;
}

.data-legend .key {
    display: inline-block;
    width: 1.3rem;
    height: 1.3rem;
    text-indent: -30px;
    margin: 0.125rem 0.5rem 0.125rem 0;
    vertical-align: middle;
    overflow: hidden;
}
.map-legend .data-intro {
    padding: 0 0.5rem;
    opacity: 0.5;
}
.expander-button {
    display: inline-block;
    position: absolute;
    bottom: 1rem;
    right: 0.5rem;
    
    height: 1rem;
    width: 1rem;
    line-height: 0.5;
    padding: 0;
}
.expander-button:focus,
.expander-button:active,
.expander-button:hover {
    box-shadow: none;
}
@media (min-height: 670px) and (min-width: 880px) {
    .expander-button {
        visibility: hidden;
    }
}

.map-legend .logo {
    padding: 0 0.5rem 0.5rem;
}
.map-legend .logo .logotype {
    font-size: 1.9rem;
    margin-bottom: -2px;
}
.map-legend .logo .cell {
    height: 12px;
    width: 12px;
}