slider.php

<div id="carouselExampleCaptions" class="carousel slide">
  <div class="carousel-indicators">
    <button type="button" data-bs-target="#carouselExampleCaptions" data-bs-slide-to="0" class="active"
      aria-current="true" aria-label="Slide 1"></button>
    <button type="button" data-bs-target="#carouselExampleCaptions" data-bs-slide-to="1" aria-label="Slide 2"></button>
    <button type="button" data-bs-target="#carouselExampleCaptions" data-bs-slide-to="2" aria-label="Slide 3"></button>
  </div>
  <div class="carousel-inner">
    <div class="carousel-item active "  style="height: 300px;">
      <div class="text-center mt-3">
        <h3>saurashtra university </h3>
      </div>
    </div>
    <div class="carousel-item  " style="height: 300px;">
    <div class="text-center mt-3">
        <h3>saurashtra university </h3>
      </div>
    </div>
    <div class="carousel-item " style="height: 300px;">
    <div class="text-center mt-3">
        <h3>saurashtra university </h3>
      </div>
    </div>
  </div>
  <button class="carousel-control-prev" type="button" data-bs-target="#carouselExampleCaptions" data-bs-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="visually-hidden">Previous</span>
  </button>
  <button class="carousel-control-next" type="button" data-bs-target="#carouselExampleCaptions" data-bs-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="visually-hidden">Next</span>
  </button>
</div>