styles.css

.bground {
  max-width: 700px;
  margin: auto;
  background: #FFCDB2;
  padding: 10px;
  padding-bottom: 50px;
  position: relative;
  height: 100vh;
  z-index:2;
}

body {
  width:auto;
  height:auto;
  background: #FFB4A2;
}

/**
bg texture code from https://stackoverflow.com/questions/18105833/css-combine-texture-and-color
bg texture from https://www.toptal.com/designers/subtlepatterns/
may not work on older devices and should be hidden from mobile/small screens anyway
**/

body:after {
  content : "";
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  background: url('https://www.toptal.com/designers/subtlepatterns/uploads/45degreee_fabric.png');
  width: 100%;
  height: 100%;
  opacity: 0.5;
}


.centre {
  display: block;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  width: 50%;
}

.centre2 > *{
  width:100%;
  padding:5px;
}

.hidden {
  display:none;
}

.box {
  background: #B5838D;
  padding: 10px;
  margin-bottom: 10px;
}