body {
    background-image: url("Hintergrund.jpeg");
    background-color: #cccccc;
   }
.menu_btn {
    background-color: rgb(2, 103, 255);
    color: white;
    padding: 15px;
    font-size: 30px;
    border: none;
    cursor: pointer;
    border-radius: 10px;
}

.menu { 
    display: inline-block;
    position: relative;

}
   
.menu-content {
    background-color: rgb(2, 103, 255);
    outline-style: solid;
    outline-color: rgb(2, 84, 206);
    min-width: 150px;
    display: none;
    position: absolute;
    text-align: center;
    border-radius: 10px;
}
  
.menu-content a {
    background-color: rgb(2, 103, 255);
    color: black;
    outline-style: solid;
    outline-width: 0.5px;
    outline-color: rgb(2, 84, 206);
    padding: 20px;
    text-decoration: none;
    font: menu;
    display: block;
    border-radius: 10px;
    font-size: 18px;
}

.menu-content a:hover {
    background-color: rgb(2, 84, 206);
}

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

.menu:hover .menu_btn {
    background-color: rgb(2, 84, 206);
}