*{
    box-sizing: border-box;
}

body{
  margin: 0;
  font-family: "Candara", sans-serif;
  height: 100vh;
}

.contenedor{
    display: table;
    width: 100%;
}

.renglon{
    display: table-row;
}

.columna_i{
    display: table-cell;
    width: 200px;
    padding: 0;
    height: 100vh;
    background-color: #dcdcdc;
    overflow: auto;
    vertical-align: top;
}

.columna_m {
    display: table-cell;
    padding: 16px;
    
    color:#5d5d5d;
}
.columna_d {
    display: table-cell;
    width: 200px;
    padding: 0;
    height: 100vh;
    background-color: #dcdcdc;
    overflow: auto;
}


.columna_i a {
  display: block;
  color: black;
  padding: 16px;
  text-decoration: none;
}
 
.columna_i a.activo {
  background-color: #017398 !important; 
  color: white !important;
}

.columna_i .icon{
    display: none;
}

.columna_i a:hover:not(.activo) {
  background-color: #555;
  color: white;
}


.imagen_centrada{
    text-align: center;
    display: block;
}

/************************************* Menu Deplegable ************************************/
.columna_i .dropdown {
    display: block;
    overflow: hidden;
    width: 100%;
}

.columna_i .dropdown .dropbtn {
    background-color: #c0c0c0;
    display: block;
    width: 100%;
    cursor: pointer;
    font-size: 16px;  
    border: none;
    outline: none;
    padding: 16px;
    font-family: inherit;
    margin: 0;
    text-align: left;
}

.columna_i .dropdown .dropbtn.selected {
    font-size: 16px;    
    border: none;
    outline: none;
    color: white;
    padding: 14px 14px;
    background-color: #555;
    font-family: inherit;
    margin: 0;
}


.columna_i .dropdown-content {
    display: none;
    width: 200px
    background-color: #dcdcdc;
    min-width: 140px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
}

.columna_i .dropdown-content a {
    float: none;
    background-color: #c0c0c0;
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
}

.columna_i .dropdown:hover .dropbtn {
  background-color: #555;
  color: white !important;
}

.columna_i .dropdown-content a:hover {
    background-color: #666;
    color: black;
}


/**************************** Termina Menú desplegable *************************************/

@media screen and (max-width: 900px) {
  .columna_m
  { padding: 16px;
    width: calc(100% - 232px);
  }
  .columna_d {width: 0px;}
}

@media screen and (max-width: 600px) {
  .columna_i a{
    display: none;
  }
  .columna_i a.icon {
    float: right;
    display: block;
  }
}

@media screen and (max-width: 600px) {
  .columna_i .dropdown  .dropbtn {
    display: none;
  }
}

@media screen and (max-width:600px){
    .columna_i {
        width: 100%;
        height: 100vh;
        position: relative;
    }
    .columna_i a{
        text-align: center;
        float:none;
    }
    .columna_i{margin-left:0; width: calc(100% - 32px);}
}

@media screen and (max-width: 600px) {
  .columna_i.responsive {position: relative;}
  .columna_i.responsive .icon {
    position: absolute;
    right: 0;
    top: 0;
  }
  .columna_i.responsive a {
    float: none;
    display: block;
    text-align: left;
  }
  .columna_i.responsive .dropdown {float: none;}
  .columna_i.responsive .dropdown-content {position: relative;}
  .columna_i.responsive .dropdown .dropbtn {
    display: block;
    width: 100%;
    text-align: left;
  }

}