ui/app/static/css/style.css

body {
  background-color: #f2f2f2;
}
/*.column {
  float: left;
  width: 50%;
}'/
/* Split the screen in half */
/*.split {
  height: 100%;
  width: 50%;
  position: fixed;
  z-index: 1;
  top: 0;
  overflow-x: hidden;
  padding-top: 20px;
}

/* Control the left side */
/*.left {
  left: 0;
  background-color: white;
}

/* Control the right side */
/*.right {
  right: 0;
  background-color: white;
}
.column {
  float: left;
  width: 33.33%;
}
.top {
  height: 50vh;
  background-color: #f1f1f1;
}

.bottom {
  height: 50vh;
  background-color: #f1f1f1;
}*/
/* If you want the content centered horizontally and vertically */
.centered {
  position: absolute;
  top: 50%;
  left: 40%;
  transform: translate(-50%, -50%);
  text-align: center;
  margin: 10;
}

.header_centered {
  position: absolute;
  top: 8%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  margin: 10;
}
.thick-border {
        border: 3px solid black;
        border-collapse: collapse;
}

/* Style the image inside the centered container, if needed */
.centered img {
  max-width: 140%;
}

.container {
    display: flex;
}

.column {
    flex: 1;

    /*for demo purposes only */
    background: #f2f2f2;
    border: 1px solid #e6e6e6;
    box-sizing: border-box;
}
.column-one {
    order: 1;
}
.column-two {
    order: 2;
}
.column-three {
    order: 3;
}