body {
  background: #f7f7f7 url("https://www.acueducto.com.co/wps/html/resources/2018ag/web_salud_seguridad/matrices_peligro/menu/fondo_matrices.jpg") no-repeat center center fixed;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
  font-family: "Open Sans";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  background: #fff;
  /* IE Fallback */
  background: rgba(255, 255, 255, 0.9);
  width: 100%;
  height: 100%;
}
.container {
  position: relative;
  z-index: 1;
  background: #e7e7e7;
  max-width: 460px;
  margin: 0 auto;
}
nav {
  background: #ffffff;
  width: 100%;
}
nav header {
  background: #0B3D72;
  padding: 20px;
}
nav header h1 {
  font-size: 16px;
  margin: 0;
  color: #fff;
  font-weight: 600;
  text-align: center;
  text-transform: uppercase;
}
nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: none;
}
nav ul li {
  display: block;
  background: #29abe2;
}
nav ul li.active {
  background: #ffffff;
}
nav ul li.active a {
  color: #0F92B6;
  border-left: 2px solid #29abe2;
}
nav ul li.active ul {
  display: block;
}
nav ul li:last-child {
  border-bottom: none;
}
nav ul li ul {
  display: none;
}
nav ul li ul li a {
  background: #ffffff;
  padding-left: 40px;
  color: #29abe2;
}
nav ul li ul li a:hover {
  padding-left: 45px;
}
nav ul li a {
  display: block;
  padding: 10px 15px;
  color: #fff;
  text-decoration: none;
  transition: 0.2s linear;
  border-left: 2px solid transparent;
}
nav ul li a:hover {
  background: #ffffff;
  padding-left: 20px;
  border-left: 2px solid #29abe2;
  color: #0F92B3;
}
nav .info {
  background: #ffffff;
  border-left: 2px solid #29abe2;
  padding: 20px;
  color: #666;
  font-size: 14px;
}
nav footer {
  background: #29abe2;
  padding: 15px 20px;
  color: #fff;
}
nav footer p {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
}
.right {
  float: right;
}
.left {
  float: left;
}