[id*="block-search-block-header"] .content a {
    display: block;
    content: url('../../resources/search-header.svg');
    padding: 6px 8px;
    background-color: var(--secondary-50);
    height: 32px;
    border-radius: 6px;
}

[id*="block-search-block-header"] .content a:hover {
    background-color: unset !important;
}