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HTML 

              
                <!-- The concept was inspired by this project: https://googlecreativelab.github.io/coder-projects/projects/mondrian/ -->
<!--  The frame design was inspired/lifted/altered from https://codepen.io/chris22smith/pen/PbBwjp -->

<div id="phrame1">
  <div id="painting1">
  </div>
</div>
<br>
<div id="refresh">&#8635;</div>
!

CSS 

              
                html {
  height:100%;
}

body {
  background-image:linear-gradient(#eee, #aaa);
  height:100%;
}

#painting1, #painting-1 {
  width:100%;
  height:100%;
}

#phrame1, #phrame-1 {
  margin:auto;
  background-color:#ddc;
  border:solid 5vmin #eee;
  border-bottom-color:#fff;
  border-left-color:#eee;
  border-radius:2px;
  border-right-color:#eee;
  border-top-color:#ddd;
  box-shadow:0 0 5px 0 rgba(0,0,0,.25) inset, 0 5px 10px 5px rgba(0,0,0,.25);
  box-sizing:border-box;
  display:inline-block;
  margin:10vh 10vw;
  height:70%;
  width: 80%;
/*   padding:8vmin; */
  position:relative;
  text-align:center;
  &:before {
    border-radius:2px;
    bottom:-2vmin;
    box-shadow:0 2px 5px 0 rgba(0,0,0,.25) inset;
    content:"";
    left:-2vmin;
    position:absolute;
    right:-2vmin;
    top:-2vmin;
  }
  &:after {
    border-radius:2px;
    bottom:-2.5vmin;
    box-shadow: 0 2px 5px 0 rgba(0,0,0,.25);
    content:"";
    left:-2.5vmin;
    position:absolute;
    right:-2.5vmin;
    top:-2.5vmin;
  }
}

#refresh {
  font-size:80px;
  font-weight:800;
  position: absolute;
  bottom: 0px;
  left: 20px;
  margin:auto;
  cursor:pointer;
}

table, th, td {
/*     border: 1px solid #30303a; */
    border-collapse: collapse;
}

.Yellow {
  background: #fff001;
}

.Blue {
  background: #0101fd;
}

.Red {
  background: #ff0101;
}

.White {
  background: #f9f9f9;
}

.Black {
  background: #30303a;
}

.noTopWhite {
  border-top: 10px solid #f9f9f9;
}

.noLeftWhite {
  border-left: 10px solid #f9f9f9;
}

.noTopYellow {
  border-top: 10px solid #fff001;
}

.noLeftYellow {
  border-left: 10px solid #fff001;
}

.noTopBlue {
  border-top: 10px solid #0101fd;
}

.noLeftBlue {
  border-left: 10px solid #0101fd;
}

.noTopRed {
  border-top: 10px solid #ff0101;
}

.noLeftRed {
  border-left: 10px solid #ff0101;
}

.leftBlack {
  border-left: 10px solid #30303a;
}

.topBlack {
  border-top: 10px solid #30303a;
}

.noise {
  height: 100%;
  background: radial-gradient(circle at 45% 55%, transparent, rgba(30, 30, 30, .20) ), url(https://grainy-gradients.vercel.app/noise.svg);
  mix-blend-mode: color;
}

/* Chrome-specific */
@media all and (-webkit-min-device-pixel-ratio:0) and (min-resolution: .001dpcm) {
  .noise {
    filter: contrast(190%) brightness(10%);
  }
}
.overlay {
  position: absolute;
  top: 0;
/*   width: 100%; */
  height: 100%;
  background: moccasin;
  mix-blend-mode: multiply;
}
!

JS 

              
                const colors = ["Black","White","Yellow","Blue","Red"];
let currentArt = 1;

$("#refresh").click(mondit);
  
function mondit () {
  $("#painting"+currentArt).html("");
  let newWidth = Math.floor(Math.random()*45)+35;
  let newHeight = Math.floor(Math.random()*45)+35;
  $("#phrame"+currentArt).css({
    "width" : newWidth+"%", 
    "margin-left" : (100-newWidth)/2 +"%", 
    "height" : newHeight+"%"
  });
  $("#painting"+currentArt).html('<table style="width:100%;height:100%"></table>');
  let rows = Math.floor(Math.random()*3)+3;
  let cols = Math.floor(Math.random()*3)+3;
  for (let row=0; row<rows ; row++) {
    $("table").append("<tr class='a"+ row +"'></tr>");
    for (let col=0; col<cols; col++) {
      if (Math.random()>.1) {
        var pick = Math.floor(Math.random()*4)+1;
      } else {
        var pick = 0;
      }

      if ( row>0 ) { var toAbove = $(".a"+(row-1)+" td:nth-child("+(col+1)+")").hasClass( colors[pick] ) };
      if ( col>0 ) { var toLeft = $(".a"+row+" td:nth-child("+col+")").hasClass( colors[pick] ) };
      
      if ( row<1 && col<1 ) {
          $(".a"+row ).append("<td class='"+ colors[pick] +"'><div class='noise'></div><div class='overlay'></div></td>");
      } else if ( row<1 && col>0 ) {
          $(".a"+row ).append("<td class='"+ colors[pick] +" leftBlack'><div class='noise'></div><div class='overlay'></div></td>");
      } else if ( row>0 && col<1 ) {
        if ( toAbove ) {
          $(".a"+row ).append("<td class='"+ colors[pick] +"'><div class='noise'></div><div class='overlay'></div></td>");
        } else {
          $(".a"+row ).append("<td class='"+ colors[pick] +" topBlack'><div class='noise'></div><div class='overlay'></div></td>");
        }
      } else if ( toAbove && toLeft || toAbove ) {
          $(".a"+row ).append("<td class='"+ colors[pick] +" leftBlack'><div class='noise'></div><div class='overlay'></div></td>");
      } else if ( toAbove && col<1 ) {
          $(".a"+row ).append("<td class='"+ colors[pick] +"'><div class='noise'></div><div class='overlay'></div></td>");
      } else if ( toLeft ) {
          $(".a"+row ).append("<td class='"+ colors[pick] +" topBlack leftBlack'><div class='noise'></div><div class='overlay'></div></td>");
          $(".a"+row+" td:nth-child("+(col)+")" ).addClass( "topBlack" );
          $(".a"+(row+1)+" td:nth-child("+(col)+")" ).addClass( "topBlack" );
      } else {
          $(".a"+row ).append("<td class='"+ colors[pick] +" leftBlack topBlack'><div class='noise'></div><div class='overlay'></div></td>");
      }
    }
  }
  let widthLeft = 100;
  for (a=0; a<cols-1 ; a++) {
    let thisWidth = Math.floor(Math.random()*(widthLeft/3))+10;
    widthLeft -= thisWidth;
    $("td:nth-child("+(a+1)+")").css("width", thisWidth+"%"); 
  }
  let heightLeft = 100;
  for (a=0; a<rows-1 ; a++) {
    let thisHeight = Math.floor(Math.random()*(heightLeft/3))+10;
    heightLeft -= thisHeight;
    $("tr:nth-child("+(a+1)+")").css("height", thisHeight+"%");
  }
  // currentArt *= -1;
}

mondit();
!
999px

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