div{
    background-color: rgb(42, 162, 80);
    height:150px;
    width:150px;
    border:5px solid rgb(0, 0, 0);
    float:left;
    margin:20px;
    text-align: center;
}

.zoro{
    background-color: rgb(122, 224, 158);
}

.zorojuro{
    background-color: rgb(29, 226, 46);
}

#main{
    font-family: 'Courier New', Courier, monospace;
}

#mian{
    font-size: larger;
}

.nav {
    background-color: cadetblue;
    padding:14px 20px;
    text-align: center;
}

.nav a:hover{
    color:aliceblue;
    text-decoration: none;
    padding: 14px;
}