JSFiddle - React, Tailwind, and code Playground

by LuckyCat

HTML

<div class="header">
  Header
</div>
<main class="main-section">
  <div class="photo-block">1 Photo</div>
  <div class="slogan-block">2 Text</div>
  <div class="reg-form-block">
    3 Form<br>
    3 Form<br>
    3 Form<br>
    3 Form<br>
  </div>
</main>

CSS

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

html,
body,
.wrapper {
  min-height: 100%;
  height: 100%;
}

.main-section {
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  /*height: 300px;*/
  margin: 0;
  padding: 0;
  list-style-type: none;

  width: 500px;
  /*height: 430px;*/
  /* !!! */
  margin: 0 auto;

  justify-content: center;
}

.main-section div {
  /*height: 80px;*/
  border: solid;
  width: 100%;
  margin: 0;
  order: 5;
}

li:nth-child(odd) {
  /*height: 40px;*/
}

.photo-block {
  /*height: 100%;*/


  width: 260px;
  height: 360px;

  margin: 0 auto;
}

.photo-block {
  order: 2;
}

.slogan-block {
  order: 1;
}

.reg-form-block {
  order: 3;
}


/*@media screen and (max-width: 500px) {*/
/* start desctop*/
@media screen and (min-width: 700px) {
  body {
    background: green;
  }

  .main-section {
    height: 430px;
    /* !!! */
  }

  .main-section div {
    width: 50%;
  }

  .photo-block {
    width: 315px;
    height: 430px;
    /* !!! */
  }

  .photo-block {
    order: 1;
  }

  .slogan-block {
    order: 2;
  }

}