style.css

html,
body {
  position: relative;
  height: 100%;
}

body {
  background-image: linear-gradient(to right, #4facfe 0%, #00f2fe 100%);
  font-family: Poppins;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0;
}

.swiper {
  width: 700px;
  padding-top: 50px;
  padding-bottom: 50px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 10px;
  backdrop-filter: blur(14px);
}

.swiper-slide {
  background-position: center;
  background-size: cover;
  width: 300px;
  height: 300px;
  margin: 10px;
  border-radius: 10px;
  background-color: rgb(31 41 55);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: .3s linear;
}

.swiper-slide:hover{
  transform: scale(1.05) rotate(2deg);
}

.swiper-slide .container h1{
  background-color: rgb(12, 19, 29);
  padding: 10px;
  width: 150px;
  height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgb(255, 111, 123);
  border-radius: 10px;
  font-size: 70px;
}

.swiper-button-prev,
.swiper-button-next{
  color: rgb(255, 111, 123);
}

:root {
  --swiper-theme-color: rgb(255, 111, 123);
}