placeholder.css

/* homepage */
/* @media only screen and (min-width: 600px) {...} */
/* first image div */
float: left;
    width: 300px;
    height: 200px;
    margin-top: 4px;
    margin-right: 15px;
    border-radius: 10px;
    margin-left: 15px;

    /* text under: */
    padding-right: 15px;
    padding-left: 15px;
    padding-top: 15px;
    font-size: 18px;
    font-weight: 1;

/* second img in div */
float: right;
width: 300px;
height: 200px;
margin-left: 15;
border-radius: 10px;
margin-top: 15px;


    /* footer */
    footer ul {
      display: grid;
      grid-template-columns: 1fr 1fr;
      list-style: none;
      margin-left: 30px;
      margin-top: 10px;
  }

  /* @media only screen and (min-width: 768px) {...} */

  img 1 {
    float: left;
    width: 300px;
    height: 200px;
    margin-top: 4px;
    margin-right: 15px;
    border-radius: 10px;
    margin-left: 15px;
}
  
img 1 text: {
  font-size: 22px;
}


img 2: {
  height: 200px;
    margin-left: 10px;
    border-radius: 10px;
}

 
/* @media only screen and (min-width: 992px) {...} */

img 1 {
  float: left;
    width: 500px;
    height: 300px;
    margin-top: 4px;
    margin-right: 10px;
    border-radius: 10px;
    margin-left: 10px;
}

img 2 {
  width: 500px;
  height: 300px;
}