.element {
    position: relative;
    border-bottom: 1px solid #EAEAEA;
}

.element::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 1px; /* hoặc cao hơn nếu muốn blur rõ hơn */
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5); /* đây là phần "blur" */
    pointer-events: none;
}
    .ri-stack-line{
        display: none;
        font-size: 25px;
        margin-top: 10px;
    }

.imgpopover{
    width: 30px;
}
.language{
    cursor: pointer;
}

.language:hover{
    background-color: #3CB5E9;
    transition: 0.5s;
}
.btn-custom:focus {
    outline: none;
    border-color: #0d6efd !important;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.5);
}
.tippy-content{
    background-color: white;
    border: 1px solid #D9CACA;
    border-radius: 3px;
}
.tippy-box[data-placement^=bottom]>.tippy-arrow:before{
    border-bottom-color: rgb(217, 202, 202);
}