html,body {
  height: 100%;
  padding: 0;
  margin: 0;
}

body {
  background-color: #FFFFFF;
  display: flex;
  flex-direction: column;
}

main {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

#nav-superior {
  display: flex;
  background-color: #8379b3;
  justify-content: space-between;
  align-items: center;
  flex-flow: row nowrap;
  height: 3.5em;
  padding: 0.7em;
}

#nav-herramientas {
  background-color: #000000;
  opacity: 0.8;
  height: 1em;
  padding: 0.8em;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
}

.nav-izquierda {}

.nav-derecha ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

.nav-derecha ul li {
  float: left;
}

.ICON {
  margin: 0.5em;
  height: 30px;
  width: 30px;
}

.ICON-herramientas {
  margin: 0.5em;
  height: 25px;
  width: 25px;
}

#colores {
  position: fixed;
  top: 8.5em;
  right: 1em;
  z-index: 1;
  height: 30px;
  width: 30px;
}

#area-dibujo {
  height: 100%;
}

#botonera-abajo {
  display: flex;
  flex-direction: row;
  opacity: 0.8;
  height: 3.5em;
  color: #FFFFFF;
}

.herramientas-inferior {
  background-color: #000000;
  text-align: center;
  flex-grow: 1;
  flex-basis: auto;
  border-radius: 15px 15px 0px 0px;
}