* {
  box-sizing: border-box;
}

html, body {
  padding: 0;
  margin: 0;
  background-color: #FAFAFA;
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: 'Roboto', Arial, sans-serif;
}

body {
  display: flex;
  flex-direction: column;
}

.header {
  width: 100%;
  height: 56px;
  color: white;
  background: #607D8B;
  font-size: 20px;
  box-shadow: 0 4px 5px 0 rgba(0, 0, 0, 0.14),
              0 2px 9px 1px rgba(0, 0, 0, 0.12),
              0 4px 2px -2px rgba(0, 0, 0, 0.2);
  padding: 16px 16px 0;
  position: relative;
  z-index: 1;
}

.header__title {
  font-weight: 400;
  font-size: 20px;
  margin: 0;
}

.main {
  flex: 1;
  padding: 16px;
  background: white;
  overflow-x: hidden;
  overflow-y: scroll;
  -webkit-overflow-scroll: auto;
}

.main img {
  width: 100%;
}

.zoomer {
  width: 0px;
  height: 0px;
  position: fixed;
  left: 0;
  top: 0;
}

.zoomer__canvas {
  pointer-events: none;
  position: absolute;
  left: -64px;
  top: -140px;
}