.body {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            width: 100%;
            height: 100%;
        }
        .wrapperHead {
            position: relative;
            width: 100%;
            height: 30%;
            background-color: gray;
            text-align: center;
            font-size: 25px;
        }
        .container{ 
            position: relative;
            width: 100%;
            height: 400px;
            background-color: rgb(169, 169, 169);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .dropdownbtn {
            background-color: #3498DB;
            color: white;
            padding: 16px;
            border: none;
            cursor: pointer;
        }
        .dropdownbtn:hover, .dropdownbtn:focus {
            background-color: #2980B9;
        }
        .dropdown {
            position: relative;
            float: left;
        }
        .dropdown-content {
            display: none;
            position: absolute;
            background-color: #f1f1f1;
            width: 100%;
            overflow:auto;
            box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
            z-index: 1;
        }
        .dropdown-content a {
            color: black;
            padding: 12px 16px;
            text-decoration: none;
            display: block;
            font-size: 13px;
        }
        .dropdown-content a:hover {
            background-color: #ddd;
        }
        .show {
            display: block;
        }