.oxi-image-flipbox-hover-style-12 .oxi-image-hover-icon.oxi-image-hover-icon-underline{
    position: relative;
    margin-bottom: 30px;
}
.oxi-image-flipbox-hover-style-12 .oxi-image-hover-icon.oxi-image-hover-icon-underline:before{
    position: absolute;
    content: "";
    bottom: 0;
    transform: translateX(-50%);
    left: 50%;    
    width: 100px;
    border-bottom-width: 2px;
    border-bottom-style: solid;
}