@media (min-width: 576px) {

header {
    background-color: rgb(219, 219, 120);
    text-align: center;
}

nav {
    display: none;
    position: absolute;
    left: 0;
    background-color: black;
    width: 100%;
}

.menu li {
    text-align: left;
    color: white;
}

.menu a {
    text-decoration: none;
    color: white;
    display: block;
}

#menu-clicked {
    display: none;
}

#menu-clicked:checked~nav {
    display: block;
}

.menu-icon {
    font-size: 2em;
    cursor: pointer;
}

img {
    display: block;
    margin: auto;
}

#fun {
   width: 60%;
   height: 60%;
}
h2 {
    text-align: center;
}


}
@media (min-width: 720px) {

    #menu-clicked,
    .menu-icon {
        display: none;
    }

    nav {
        display: block;
        position: static;
        background: #7ec981;
        text-align: center;
        padding: 2px 0;
    }

    .menu {
        display: inline-block;
    }

    .menu li {
        display: inline-block;
        padding: 10px 15px;
        border-bottom: none;
    }
}

@media (min-width: 992px) {

    #menu-clicked,
    .menu-icon {
        display: none;
    }

    nav {
        display: block;
        position: static;
        background: #848b41;
        text-align: center;
        padding: 2px 0;
    }
 #fun {
    width: 800px;
    height: 800px;
 }

    .div1 {
        float: left;
    }
    .div2 {
        float: right;
    }

}