<div class="search-highlight">
<input type="text" id="searchBox" placeholder="Search text...">
<p id="contentText">
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
</p>
</div>
.search-highlight {
font-family: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
max-width: 500px;
margin: 0 auto;
}
#searchBox {
width: 100%;
padding: 10px;
border: 1px solid #d1d5db;
border-radius: 8px;
margin-bottom: 20px;
font-size: 1rem;
box-sizing: border-box;
}
#contentText {
line-height: 1.6;
color: #374151;
}
.highlight {
background-color: #fef08a;
color: #854d0e;
font-weight: bold;
border-radius: 2px;
padding: 0 2px;
}
const searchBox = document.getElementById("searchBox");
const p = document.getElementById("contentText");
const originalText = p.innerText;
searchBox.addEventListener("input", function() {
const val = this.value;
if (val.trim() === "") {
p.innerHTML = originalText;
return;
}
// Create regular expression with global and case-insensitive flags
const regex = new RegExp(`(${val})`, "gi");
// Replace match with wrapped mark tag
const newText = originalText.replace(regex, `<mark class="highlight">$1</mark>`);
p.innerHTML = newText;
});
