styles.css

*,
::after,
::before {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  margin: 0;
}

.container-1,
.container-2,
.flex-box-rps {
  display: flex;
  flex-direction: column;
  width: 70%;
  align-items: center;
  justify-content: center;
  background-color: rgb(171, 171, 171);
  min-height: 10vh;
  margin: 0 auto;
}

.flex-box-rps {
  min-height: 55vh;
  flex-direction: row;
  flex-wrap: wrap;
}

.list {
  text-align: center;
  margin: 40px;
  color: #1a1a1a;
  font-family: sans-serif;
  font-size: 16px;
  line-height: 1.5rem;
}

.flex-box-rps img {
  margin: 25px;
  box-shadow: 0 10px 50px rgba(0, 0, 0, 0.4);
}

.flex-box-rps img:hover {
  box-shadow: 0 10px 50px rgba(37, 50, 233, 1);
}

.btn {
  align-items: center;
  background-clip: padding-box;
  background-color: #fa6400;
  border: 1px solid transparent;
  border-radius: .25rem;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.02);
  box-sizing: border-box;
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  font-family: system-ui, -apple-system, system-ui, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  font-weight: 600;
  justify-content: center;
  line-height: 1.25;
  min-height: 3rem;
  padding: calc(.875rem - 1px) calc(1.5rem - 1px);
  position: relative;
  text-decoration: none;
  transition: all 250ms;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  vertical-align: baseline;
  width: auto;
}

.btn:hover,
.btn:focus {
  background-color: #fb8332;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  background-color: #c85000;
  box-shadow: 0 2px 4px rgba(0, 0, 0, .06);
  transform: translateY(0);
}

@media (max-width: 768px) {
    .container-1,
    .container-2,
    .flex-box-rps {
      width: 100%;
    }
    .flex-box-rps {
        margin-bottom: 20px;
        flex-direction: column;
      }
  
    .list {
      margin: 20px;
    }
  
    .flex-box-rps img {
      margin: 15px;
    }
  }