.post-title {
  padding: 20px;
  background: rgb(47, 77, 126);
  background: radial-gradient(circle, rgba(47, 77, 126, 1) 0%, rgba(35, 58, 94, 1) 35%, rgba(47, 77, 126, 1) 100%);
  color: #fff;

}

.post-title h1 {
  width: 800px;
  margin: auto;
}

.post {
  width: 800px;
  margin: auto;
  transition: 0.3s;
  padding: 10px;
}

.sidebyside {
  display: flex;
  gap: 20px;
}

.sidebyside>div {
  width: 50%;
}

@media (max-width: 768px) {
  .post-title h1 {
    width: 100%;
  }

  .post {
    width: 100%;
  }

  .sidebyside {
    flex-direction: column;
  }

  .sidebyside>div {
    width: 100%;
  }
}