.center{
    display: block;
    margin-left: auto;
    margin-right: auto;

}
p{
    font-size: 25px;
    line-height: 2;

}

.underline{
    text-decoration: underline;
    font-size: 50px;

}

div#kill{
    line-height: 2;
    font-size: 25px;
}
div#grid{
    line-height: 2;
    font-size: 25px;
}
div#lulu{
    line-height: 2;
    font-size: 25px;
}
summary{
    font-size: 20px;
}
.background{
    background-color: #a2ddff;
}