body {
  /* background: #ecf0f1;
  color: #050620; */
  background: #050620;
  background: -webkit-radial-gradient(rgba(5,6,32,0.79), rgba(5,6,32,0.91));
  background:    -moz-radial-gradient(rgba(5,6,32,0.79), rgba(5,6,32,0.91));
  background:         radial-gradient(rgba(5,6,32,0.79), rgba(5,6,32,0.91));
  color: #ecf0f1;
  border: 10px solid white;
  border-bottom: none;
  transition: all 0.3s ease-out;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  height: 1500px;
  width: 100%;
}

p, li, a {
  font-size: 18px;
  text-decoration: none;
}

.hero {
  max-width: 700px;
}

.scrolling-object {
  padding: 10px;
  background: rgba(0,0,0,1.0);
  border: 4px solid red;
  color: #ecf0f1;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.scroll-object-visualisation {
  margin-top: 20px;
  /* width: 50%; */
  display: flex;
  flex-direction: column;
  align-items: center;
}
.window {
  border: 5px solid white;
  padding: 5px;
}
.flex-top, .flex-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
}
.rect-left-right {
  display: flex;
  align-items: center;
}
.flex-left, .flex-right {
  display: flex;
  flex-direction: column;
}
.rect {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 5px;
  border: 2px solid red;
}
.rect .centralSize {
  display: flex;
  align-items: center;
}
.rect .centralSize .size {
  display: flex;
  flex-direction: column;
  margin: 30px;
}



footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  border-bottom: 10px solid white;
}
.info-description {
  font-weight: 800;
  margin-bottom: 10px;
}
.scroll-info {
  padding-left: 15px;
  padding-bottom: 5px;
  width: 140px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
}
.screen-info {
  padding-bottom: 5px;
  width: 250px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
}
.mouse-info {
  padding-right: 15px;
  padding-bottom: 5px;
  width: 250px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}
#mouseXY {
  text-align: right;
}