.aspnet-dropdown {
    position: relative;
    display: block;
    width: 100%;
}

#dropdownButton {
    border: 1px solid #ccc;
    padding: 10px;
    border-radius: 4px;
    width: 100%;
    box-sizing: border-box;
    background-color: white;
    cursor: pointer;
    text-align: left; 
    position: relative; 
    white-space: nowrap; 
    overflow: hidden;
}

#dropdownButton::after {
    content: "▼";
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
}

.aspnet-dropdown-content {
    display: none;
    position: absolute;
    background-color: #f9f9f9;
    border: 1px solid #ccc;
    border-radius: 4px;
    min-width: 100%; 
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
    max-height: 200px;
    overflow-y: auto;
    box-sizing: border-box;
}

.aspnet-dropdown-content label {
    color: black;
    padding: 5px 16px;
    text-decoration: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.aspnet-dropdown-content label:hover {
    background-color: #f1f1f1;
}

.aspnet-dropdown-content .select-buttons {
    display: flex;
    justify-content: space-between;
    padding: 8px 16px;
    background-color: #f1f1f1;
    border-bottom: 1px solid #ccc;
    border-radius: 4px;
}

.aspnet-dropdown-content .select-buttons button {
    border: 1px solid #ccc;
    padding: 10px;
    border-radius: 4px;
    background-color: white;
    cursor: pointer;
}
.aspnet-dropdown-content input[type="checkbox"] {
    display: none;
}

.aspnet-dropdown-content input[type="checkbox"] + span {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: none;
    background: none;
    position: relative;
    background-color: transparent;
}



.aspnet-dropdown-content input[type="checkbox"]:checked + span::after {
    content: '✔';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 20px;
    color: black;
}


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