.board_top.menu { 
    cursor: pointer;
    width: 110px;
    position: relative;
    font-size: 20px;
    text-align: center;
    display: inline-flex;
    width: 50px;
    justify-content: center;
}

.fa, .fas {
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
}
.fa, .fas, .far, .fal, .fad, .fab {
    -moz-osx-font-smoothing: grayscale;
    -webkit-font-smoothing: antialiased;
    display: inline-block;
    font-style: normal;
    font-variant: normal;
    text-rendering: auto;
    line-height: 1;
}
.white {
    color: gray;
}
.fa-globe:before {
    content: "\f0ac";
}
.menu_ul {
    position: absolute;
    top: calc(100% + 10px);
    color: #ddd;
    left: 50%;
    transform: translateX(-50%);
    height: 0;
    overflow: hidden;
    transition: all 0.25s;
    opacity: 0;
    font-size: 14px;
    z-index : 99999;
}
ul, li {
    padding: 0;
    margin: 0;
    list-style: none;
}
.menu_ul>li {
    background-color: #ffffff;
    border: 1px solid #ddd;
    word-break: keep-all;
    transition: all 0.25s;
    color: #727272;
}
.menu_ul>li>a {
    padding: 0 30px;
    line-height: 2;
    display: block;
}
a {
    color: inherit;
    text-decoration: none;
}
.board_top.menu:hover .menu_ul {
    opacity: 1;
    height: 90px;
}
.menu_ul>li:hover {
    border: 1px solid #8f8f8f;
    color: #000;
}