* {
  padding: 0;
  margin: 0;
  transition: 0.5s;
  box-sizing: border-box;
}

span {
  font-family: 'Montserrat', sans-serif;
}

body {
  font-family: 'Montserrat', sans-serif;
}

header {
  position: fixed;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 10px 20px 0 rgba(0, 0, 0, 0.2);
}

header h1 {
  text-align: center;
  font-size: 55px;
}



a {
  text-decoration: none;
}

nav {
  background: #2e9bf0;
  padding: 0rem;
  text-align: center;
}

nav ul li {
  display: inline-block;
  padding: 1em 3em 1em 3em;
}

nav ul li :hover {
  padding: 1em 3em 1em 3em;
  background: #bcdcff;
  transition: 0.3s;
}

nav ul li a {
  color: #ffff;
  text-decoration: none;
  font-weight: bold;
}


.materias { text-align: center; display: flex; flex direction: row; flex-wrap: nowrap; justify-content:space-around; align-items: stretch; align-content:stretch; background: #2e9bf0; margin-top: 1rem;
    
} 





main section article {
  padding: 2rem;
  background: #fff;
}

footer {
  background: #000000;
  padding: 1rem;
}

footer p {
  font-size: 0.8rem;
  color: #3e3e3e;
  text-align: center;
}

.accordion {
  background-color: #2e9bf0;
  border: none;
  color: #fff;
  cursor: pointer;
  padding: 18px;
  width: 100%;
  text-align: center;
  outline: none;
  font-weight: bold;
  font-size: 18px;
  transition: 0.4s;
}

.accordion:after {
  content: '\02795';
  font-size: 13px;
  color: #fff;
  text-decoration: none;
  float: right;
  margin-left: 5px;
}

.active:after {
  content: "\2796";
}

.active,
.accordion:hover {
  background-color: #087fdc;
}

.panel {
  background-color: white;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease-out;
}

.materias {
  margin: 0em 3rem 10rem 3em;
}

.materias a {
  text-decoration: underline;
  color: #2e9bf0;
}

.panel p {
  text-align: center;
  background: #99d2ff;
  padding: 1rem;
  margin: 0;
  color: #096ebd;
  font-weight: 500;
}

.card {
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
  transition: 0.3s;
  width: 25%;
  padding: 1rem;
  margin: 1rem;
}

.card:hover {
  box-shadow: 0 8px 16px 0 rgba(0, 0, 0, 0.2);
}

.card img {
  -webkit-filter: grayscale(100%);
  filter: grayscale(100%);
}

.container {
  background: #2e9bf0;
}

.container :hover {
  background: #bcdcff;
  transition: 0.3s;
}

.container h4 {
  text-align: center;
  padding: 1rem;
  color: white;
}

.header {
  padding: 0rem;
}

.parallax {
  background-attachment: fixed;
  background-position: top;
  background-repeat: no-repeat;
  height: 20rem;
  background-image: url('../header.jpg');
}

.parallax2 {
  background-attachment: fixed;
  background-position: top;
  background-repeat: no-repeat;
  height: 20rem;
  background-image: url('../header2.jpg');
}

.parallax3 {
  background-attachment: fixed;
  background-position: top;
  background-repeat: no-repeat;
  height: 20rem;
  background-image: url('../header3.jpg');
}

.all-browsers {
  background-color: white;
  display: inline-flex;
  width: 100%;
}

.all-browsers>h1,
.browser {
  padding: 2rem;
}

.browser {
  background: #2e9bf0;
  color: #fff;
  display: inline-block;
  width: 100%;
}

.browser>h2,
p {
  margin: 1rem; display: flex;
  align-items: center;
}

.browser>p>a {
  color: #fff;
  font-weight: bold;
  text-decoration: revert; display: flex;
  align-items: center; text-align: center;
}

.plan img {
  margin: 5em 5em 5em 5em;
  border: 1px solid #7b8fa7;
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 80%;
}

.avatar img {
  border-radius: 50%;
  border: 5px solid #fff;
  display: block;
  margin-left: auto;
  margin-right: auto;
  margin-top: 2rem;
  width: 18%;
}

.avatar img:hover {
  box-shadow: 0px 0px 25px #2e9bf0;
  transition: 0.6s;
}

.avatar h1 {
  text-align: center;
  margin: 1rem;
}

.avatar h2 {
  text-align: center;
  background: #096ebe;
  padding: 1rem;
  margin: 0rem 2rem;
  color: #fff;
}

.encurso {
  font-family: 'Montserrat', sans-serif;
  font-weight: lighter;
  color: black;
}

.alumnos {
  display: inline-flex;
  width: 100%;
}

.titulo {
  text-align: left;
  padding: 2rem 2rem 0rem 2rem;
}

.titulo2 {
  text-align: left;
  padding: 2rem;
  font-size: 45px;
  color: #2e9bf0;
}

.plan p {
  text-align: left;
  padding: 1em 20em 3em 3em;
  margin-bottom: 0em;
}

.link-activo {background: #2e9bf0;
}