styles.css

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Source Sans Pro", sans-serif;
  color: #404040;
  text-align: center;
}

/* ======================== */
/* ======================== */
/* ======================== */

h1 {
  font-size: 2.25rem;
  font-weight: 300;
  color: white;
  margin: 0;
}

strong {
  font-weight: 900;
}

h2 {
  font-size: 1.3125rem;
}

.down-title,
.second-title {
  color: #f18119;
  font-size: 1.3125rem;
  font-weight: 900;
  margin: 0;
  text-transform: uppercase;
}

.first-title {
  margin-bottom: 0;
}

.second-title {
  margin-top: 0;
}

.upp-title {
  font-size: 0.625rem;
  font-weight: 900;
  color: #f18119;
  text-transform: uppercase;
  letter-spacing: 0.9px;
}

.down-text {
  font-size: 0.625rem;
  letter-spacing: 0.7px;
}

/* ======================== */
/* ======================== */
/* ======================== */

.sec-a {
  background-color: #404040;
  background-image: url(./bbq.jpg);
  padding: 0 0.5em 2em;
  background-size: cover;
  background-position: center;
}

.container-sec-a {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 50vh;
  border: 3px solid red;
}

/* ======= */

.sec-b {
  padding: 2em 1em;
}

.container {
  max-width: 400px;
  margin: 0 auto;
}

/* ======================== */
/* ======================== */
/* ======MEDIA QUERY======== */

@media (min-width: 550px) {
  h1 {
    font-size: 3.5rem;
  }
  h2,
  .down-title {
    font-size: 1.75rem;
  }
  .flex {
    display: flex;
    min-height: 100vh;
  }
  .sec-a {
    width: 55%;
  }
  .sec-b {
    width: 45%;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .container-sec-a {
    height: 100%;
  }
}

/* ======================== */