.custom-file {
    position: relative;
    display: inline-block;
    max-width: 300px;
    height: calc(1.5em + 0.75rem + 2px);
    margin-bottom: 0;
}
.custom-file-label {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1;
    height: calc(1.5em + 0.75rem + 2px);
    padding: 0.375rem 0.75rem;
    overflow: hidden;
    font-weight: 400;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    border: 1px solid #e3e3e3;
    border-radius: 0.25rem;
    color: #b4b4b4;
}
.custom-file-input:lang(es) ~ .custom-file-label::after {
    content: "Buscar";
    background: #f46332;
    color: white;
}