cours-MDS/b2-cwd/integration/live/session5/checkbox/style.scss

.freq {
    display:none;
}

#sport:checked {
    ~ .freq.sport {
        display:block;
    } 
}

#culture {
    background-color:red;
    &:checked {
        ~ .freq.culture {
            display:block;
        }
    } 
}