* {box-sizing:border-box;}
body {background:#b0da8c; font-family:monospace; color:#211914;}
p {background:#68ae77; padding:15px; font-size:14px; line-height:1.4;}
img {max-width:100%;}
.wrap {max-width:1120px; margin:0 auto;}
.container {column-count:3; column-gap:0; margin-top:15px;}
.block {display:inline-block; width:100%; padding:0 7.5px;}
.block > div {margin-bottom:15px; font-size:0; border:2px solid #211914;}

@media screen and (max-width:1024px) {
  .container {column-count:2;}
}

@media screen and (max-width:640px) {
  .container {column-count:1;}
}