.dropdown {
    max-width: max-content;
}
.dropdown__body {
    display: none;
    position: fixed;    
    background-color: white;
    box-shadow: 0px 11px 20px rgba(0, 0, 0, .2);
    overflow: auto;
    margin-top: 15px;
    z-index: 9999;
}
.dropdown__body.is-open {
    display: block;
    white-space: nowrap;
}