body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
}

#content {
    text-align: center;
	width:90%;
	margin-left:5%;
}

{
  box-sizing: border-box;
}

body {
  margin: 0;
}



 .headprincipal {
  background-color: #f1f1f1;
  aspect-ratio: 10/1;
  width: 100%;
  top:50px;
  overflow: hidden;
}

@media screen and (max-width: 1000px) {
 .headprincipal {
  aspect-ratio: 7/1;
	}
}



.ch {
	position:relative;
  float: right;
  width: 20%;
  margin-left: 1vw;
  display: flex;
  color: #f1f1f1;
  max-height:140px;
}



/* Clear floats after the columns */
.row:after {
  content: "";
  display: table;
  clear: both;
}

.proba {
margin:auto;
  width:90%;
}


.back-to-top {
    position: fixed;
    bottom: 2em;
    right: 0px;
    color: #f1f1f1;
    background-color: rgba(235, 235, 235, 0.80);
    border-radius: 5px;
    padding: 1em;
    display: none;
}
.back-to-top:hover {    
    background-color: rgba(135, 135, 135, 0.50);
}
/* --------POPUP ---------------*/
.popupcr{
  background-color: #f2f2f2;
  width: 450px;
  padding: 30px 40px;
  position: fixed;
  transform: translate(-50%, -50%);
  left: 50%;
  top: 50%;
  border-radius: 8px;
  /* border: 3px solid #262626; rgb(190, 22, 22) */
  background-color: #e6e6e6;
  color: black;
  display: none;
  z-index: 9999;
  box-shadow: 0 8px 12px 0 rgba(0, 0, 0, 0.2), 0 12px 26px 0 rgba(0, 0, 0, 0.19);
}

.h1-title{
  border-bottom: 2px solid rgb(190, 22, 22);
}

.popupcr p{
  text-align: justify;
  margin: 20px 0;
}

.popupcr h2{
  text-align: justify;
  margin: 20px 0;
}

.popupcr a{
	inherit:none;
  text-decoration: none;
  background-color: #262626;
  border: 2px solid rgb(190, 22, 22);
  padding: 5px;
  border-radius: 20px;
  color: white;
  font-size: 20px;
  margin: auto;
  align-items: center;
  align-self: center;
  color: white;
}

@media screen and (max-width: 450px) {
  .popupcr {
    width: 300px;
  }

  .popupcr-title-h1{
    font-size: 23px;
  }

  .popupcr-subtitle-h2{
    font-size: 19px;
  }
}
/* --------END POPUP ---------------*/

.tg  {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
  overflow:hidden;padding:10px 5px;word-break:normal;}
.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
  font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}
.tg .tg-baqh{text-align:center;vertical-align:top}
.tg .tg-0lax{text-align:left;vertical-align:top}

.menuprincipal ul {
  background-color: gray;
  font-size:23px;
  display: inline-table;
}

.menuprincipal li {
  list-style-type: none;
    text-decoration: none;
	display: inline-block;
	width:15%;
}

.menuprincipal li a {
  color: white;
  padding-top: 5px;
    background-color: gray;
	  text-decoration: none;
	  display: inline-block;
	  width: 100%;
	  border-radius:10px;
}

.menuprincipal li a:hover {
  background-color: lightgray;
  color:black;
}