a {
    color: rgb(0, 0, 0);
}

#container {
    background-color: rgb(115, 115, 192);
    width: 1000px;
    margin: auto;
    border: solid;
    border-radius: 50px;
}

/*Khoi menu*/
#menu {
    background-color: rgb(191, 237, 191);
    border: solid;
    border-radius: 80px;
}

#menu ul {
    list-style-type: none;

}

#menu ul li {
    display: inline-block;
    width: 100px;

}

/*end menu*/

#content {
    text-align: center;
    border: blueviolet;

}

#content ul {
    list-style-type: none;
}

#content li.item {
    width: 250px;
    height: 200px;
    border: solid;
    margin: 5px;
    border-radius: 50px;
    padding: 20px;
    display: inline-block;
    border-color: yellow;
}

.item:hover {
    background-color: rgb(204, 70, 139);
}