.flex{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.box {
    flex-grow: 1;
    width: 50px;
    height: 50px;
    border: 1px solid #aaa;
    border-radius: 0px;
    transition: all 150ms ease-in;
    font-size: 24px;
    text-align: center;
    line-height: 50px;
    margin: 5px;
    color: #aaa;
    background-color: #fff;
}

.flex {
    gap:2rem;
    flex-wrap: wrap;
    justify-content: space-around;
}

#flutter_target {
    display: flex;
    justify-content: space-around;
    border: 2px solid #aaa;
    width: 70%;
    height: 70vh;
    border-radius: 0px;
    transition: all 150ms ease-in;
    background-color: #fff;
}

.center {
    margin: auto;
    width: 50%;
}

#parent {
    width: 50%;
    margin: 0 auto;
    margin-bottom: 30px;
}

/* Resetting default styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
}

/* Styling the top menu */
.top-menu {
    background-color: #333;
    margin-bottom: 30px;
}

.top-menu ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.top-menu ul li {
    display: inline-block;
}

.top-menu ul li a {
    display: block;
    color: #fff;
    text-decoration: none;
    padding: 15px 20px;
}

.top-menu ul li:hover {
    background-color: #555;
}

/* Dropdown styles */
.dropdown {
    position: relative;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #333;
    z-index: 1;
}

.dropdown-content a {
    color: #fff;
    padding: 12px 16px;
    display: block;
    text-decoration: none;
}

.dropdown:hover .dropdown-content {
    display: block;
}