.multiple-select-menu-container{
    margin-left: auto;
    margin-right: auto;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.select-menu-container {
    margin-left: auto;
    margin-right: auto;
    width: 100px;
    height: 20px;
}

.select-menu {
    /* --background: #242836;
    --text: #fff;
    --icon: #fff;
    --icon-active: #3F4656;
    --list: #1C212E;
    --list-text: rgba(255, 255, 255, .2);
    --list-text-hover: rgba(255, 255, 255, .5); */
    --background: #f3f4f7;
    --text: #000000;
    --icon: #000000;
    --icon-active: #d2d6e0;
    --list: #f3f4f7e5;
    --list-text: rgba(0, 0, 0, 0.5);
    --list-text-hover: rgba(0, 0, 0, 0.8);
    position: relative;
    z-index: 1;
    font-weight: 500;
    font-size: 14px;
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 25px;
}
.select-menu select,
.select-menu .button {
    font-family: inherit;
    margin: 0;
    border: 0;
    text-align: left;
    text-transform: none;
    -webkit-appearance: none;
}
.select-menu select {
    pointer-events: none;
    -webkit-user-select: none;
    -moz-user-select: none;
        -ms-user-select: none;
            user-select: none;
    opacity: 0;
    padding: 8px 36px 8px 12px;
    visibility: hidden;
    font-weight: 500;
    font-size: 14px;
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 25px;
}
.select-menu ul {
    margin: 0;
    padding: 0;
    list-style: none;
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    transform: translateY(var(--t));
    transition: opacity 0.3s ease, transform 0.4s cubic-bezier(0.2, 0.9, 0.4, 1.1);
}
.select-menu ul li {
    padding: 8px 36px 8px 12px;
    cursor: pointer;
}
.select-menu > ul {
    background: var(--list);
    color: var(--list-text);
    border-radius: 6px;
}
.select-menu > ul li {
    transition: color 0.3s ease;
}
.select-menu > ul li:hover {
    color: var(--list-text-hover);
}
.select-menu .button {
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    padding: 0;
    z-index: 1;
    width: 100%;
    display: block;
    overflow: hidden;
    border-radius: 6px;
    color: var(--text);
    background: var(--background);
}
.select-menu .button em {
    --r: 45deg;
    display: block;
    position: absolute;
    right: 12px;
    top: 0;
    width: 7px;
    height: 7px;
    margin-top: 13px;
    -webkit-backface-visibility: hidden;
}
.select-menu .button em:before, .select-menu .button em:after {
    --o: .4;
    content: "";
    width: 7px;
    height: 7px;
    opacity: var(--o);
    display: block;
    position: relative;
    transition: opacity 0.2s ease;
    transform: rotate(var(--r)) scale(0.75);
}
.select-menu .button em:before {
    border-left: 2px solid var(--icon);
    border-top: 2px solid var(--icon);
    top: 1px;
}
.select-menu .button em:after {
    border-right: 2px solid var(--icon);
    border-bottom: 2px solid var(--icon);
    bottom: 1px;
}
.select-menu:not(.open) > ul {
    opacity: 0;
    pointer-events: none;
}
.select-menu.open.tilt-up {
    -webkit-animation: tilt-up 0.4s linear forwards;
            animation: tilt-up 0.4s linear forwards;
}
.select-menu.open.tilt-up .button em:before {
    --o: 1;
}
.select-menu.open.tilt-down {
    -webkit-animation: tilt-down 0.4s linear forwards;
            animation: tilt-down 0.4s linear forwards;
}
.select-menu.open.tilt-down .button em:after {
    --o: 1;
}

@-webkit-keyframes tilt-up {
    40%, 60% {
    transform: perspective(500px) rotateX(8deg);
    }
}

@keyframes tilt-up {
    40%, 60% {
    transform: perspective(500px) rotateX(8deg);
    }
}
@-webkit-keyframes tilt-down {
    40%, 60% {
    transform: perspective(500px) rotateX(-8deg);
    }
}
@keyframes tilt-down {
    40%, 60% {
    transform: perspective(500px) rotateX(-8deg);
    }
}
html {
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

* {
    box-sizing: inherit;
}
*:before, *:after {
    box-sizing: inherit;
}


/* .select-menu {
    --background: #f3f4f7;
    --text: #000000;
    --icon: #000000;
    --icon-active: #d2d6e0;
    --list: #f3f4f7e5;
    --list-text: rgba(0, 0, 0, 0.5);
    --list-text-hover: rgba(0, 0, 0, 0.8);
    position: relative;
    z-index: 1;
    font-weight: 700;
    font-size: 14px;
    line-height: 25px;
    select,
    .button {
        font-family: inherit;
        margin: 0;
        border: 0;
        text-align: left;
        text-transform: none;
        -webkit-appearance: none;
    }
    select {
        pointer-events: none;
        user-select: none;
        opacity: 0;
        padding: 8px 36px 8px 12px;
        visibility: hidden;
        font-weight: 500;
        font-size: 14px;
        line-height: 25px;
    }
    ul {
        margin: 0;
        padding: 0;
        list-style: none;
        position: absolute;
        left: 0;
        top: 0;
        right: 0;
        transform: translateY(var(--t));
        transition: opacity .3s ease, transform .4s cubic-bezier(.2, .9, .4, 1.1);
        li {
            padding: 8px 36px 8px 12px;
            cursor: pointer;
        }
    }
    & > ul {
        background: var(--list);
        color: var(--list-text);
        border-radius: 6px;
        li {
            transition: color .3s ease;
            &:hover {
                color: var(--list-text-hover);
            }
        }
    }
    .button {
        position: absolute;
        left: 0;
        top: 0;
        right: 0;
        bottom: 0;
        padding: 0;
        z-index: 1;
        width: 100%;
        display: block;
        overflow: hidden;
        border-radius: 6px;
        color: var(--text);
        background: var(--background);
        em {
            --r: 45deg;
            display: block;
            position: absolute;
            right: 12px;
            top: 0;
            width: 7px;
            height: 7px;
            margin-top: 13px;
            -webkit-backface-visibility: hidden;
            &:before,
            &:after {
                --o: .4;
                content: '';
                width: 7px;
                height: 7px;
                opacity: var(--o);
                display: block;
                position: relative;
                transition: opacity .2s ease;
                transform: rotate(var(--r)) scale(.75);
            }
            &:before {
                border-left: 2px solid var(--icon);
                border-top: 2px solid var(--icon);
                top: 1px;
            }
            &:after {
                border-right: 2px solid var(--icon);
                border-bottom: 2px solid var(--icon);
                bottom: 1px;
            }
        }
    }
    &:not(.open) {
        & > ul {
            opacity: 0;
            pointer-events: none;
        }
    }
    &.open {
        &.tilt-up {
            animation: tilt-up .4s linear forwards;
            .button {
                em {
                    &:before {
                        --o: 1;
                    }
                }
            }
        }
        &.tilt-down {
            animation: tilt-down .4s linear forwards;
            .button {
                em {
                    &:after {
                        --o: 1;
                    }
                }
            }
        }
    }
}

@keyframes tilt-up {
    40%,
    60% {
        transform: perspective(500px) rotateX(8deg);
    }
}

@keyframes tilt-down {
    40%,
    60% {
        transform: perspective(500px) rotateX(-8deg);
    }
} */