#app {
    padding: 10px;
    min-width: 500px;
    width: 30%;
}

.countries {
    margin: 10px 10px 20px;
    width: calc(100% - 10px - 10px);
}

.medals {
    margin-bottom: 20px;
}

.medals .btn {
    border: 3px solid transparent;
}

.medals .btn.active {
    box-shadow: inset 2px 2px 5px rgba(0,0,0,.5);
}

.pages {
    margin-bottom: 20px;
}