#ex1 {
    .box {
        border: 1px solid #333333;
        width: 250px;
        height: 100px;
    }
}

#ex2 {
    .word {
        border: 1px solid #333333;
        width: 100px;
        font-size: 250%;
    }
}

#ex3 {
    .box {
        border: 1px solid #333333;
        width: 250px;
        height: 100px;
        overflow: hidden;
    }
}

#ex4 {
    .box {
        border: 1px solid #333333;
        width: 250px;
        height: 100px;
        overflow: scroll;
    }
}

#ex5 {
    .box {
        border: 1px solid #333333;
        width: 250px;
        height: 100px;
        overflow-y: scroll;
    }
}

#ex6 {
    .word {
        border: 5px solid #333333;
        width: 100px;
        font-size: 250%;
        overflow-x: scroll;
    }
}

#ex7 {
    .box {
        border: 1px solid #333333;
        width: 250px;
        height: 100px;
        overflow: auto;
    }
}