html {
  box-sizing: border-box;
}

*, *:before, *:after {
  box-sizing: inherit;
}

body {
  font-family: Arial, sans-serif;
  width: 100vw;
  margin: 0px;
  max-height: 100%;
  background-image: url(../images/fondo.jpg);
}

ul {
  padding-left: 0;
  list-style: none;
}

li {
  padding: 5px 0;
  animation: fadein 5s;
}

li::before {
  content: "• ";
  color: #f8d410;
}

.col-40 h1 {
  font-size: 35px;
  color: #f8d410;
}

.col-40, .col-60 {
  margin: 0;
  vertical-align: top;
}

.col-40 {
  background: rgb(28, 72, 83);
  padding: 30px;
  color: rgb(255, 255, 255);
  width: 30vw;
  float: left;
  min-height: 100vh;
}

.col-60 {
  background: transparent;
  width: 70vw;
  float: left;
}

#flecha {
  font-size: 50px;
  margin-bottom: -20px;
}

.texto-centrado {
  text-align: center;
}

.texto-centrado img {
  width: 60%;
}

#juego div {
  text-align: center;
  animation: fadein 2s;
}

@keyframes fadein {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.tablero {
  width: 600px;
  height: 600px;
  margin: 6.8% auto;
  -webkit-box-shadow: 0px 0px 33px 29px rgba(0, 0, 0, 0.75);
  -moz-box-shadow: 0px 0px 33px 29px rgba(0, 0, 0, 0.75);
  box-shadow: 0px 0px 33px 29px rgba(0, 0, 0, 0.75);
}

.tablero div {
  width: 33.33%;
  height: 33.33%;
  outline: solid 1px rgb(34, 64, 71);
  float: left;
}

.tablero div img {
  width: 100%;
  margin: 0;
}

footer {
  position: fixed;
  bottom: 0;
  right: 0;
  left: 0;
  text-align: right;
  clear: both;
  /* Permalink - use to edit and share this gradient: http://colorzilla.com/gradient-editor/#000000+0,f8d410+100&0+0,0+31,1+100 */
  background: -moz-linear-gradient(left, rgba(0, 0, 0, 0) 0%, rgba(77, 66, 5, 0) 31%, rgba(248, 212, 16, 1) 100%);
  /* FF3.6-15 */
  background: -webkit-linear-gradient(left, rgba(0, 0, 0, 0) 0%, rgba(77, 66, 5, 0) 31%, rgba(248, 212, 16, 1) 100%);
  /* Chrome10-25,Safari5.1-6 */
  background: linear-gradient(to right, rgba(0, 0, 0, 0) 0%, rgba(77, 66, 5, 0) 31%, rgba(248, 212, 16, 1) 100%);
  /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00000000', endColorstr='#f8d410', GradientType=1);
  /* IE6-9 */
  padding: 1% 3em;
  z-index: 999999;
}

.contenido {
  display: block;
}

.mobile {
  display: none;
}

@media only screen and (max-width: 800px) {
  .contenido {
    display: none;
  }
  .mobile {
    display: block;
    color: white;
    font-size: 2em;
    padding: 10%;
  }
  footer {
    position: fixed;
    bottom: 0px;
    width: 100%;
    height: auto;
    padding: 5%;
  }
}

/*Alert Personalizado*/

#alert-fondo {
  display: none;
  opacity: .8;
  position: fixed;
  top: 0px;
  left: 0px;
  background: #FFF;
  width: 100%;
  z-index: 10;
}

#contenido-alert {
  display: none;
  position: fixed;
  background: #000;
  border-radius: 7px;
  width: 550px;
  z-index: 10;
}

#contenido-alert>div {
  background: #FFF;
  margin: 8px;
}

#contenido-alert>div>#alert-header {
  background: #666;
  font-size: 19px;
  padding: 10px;
  color: #CCC;
}

#contenido-alert>div>#alert-body {
  background: #333;
  padding: 20px;
  color: #FFF;
}

#contenido-alert>div>#alert-footer {
  background: #666;
  padding: 10px;
  text-align: right;
}