html, body{
  height:100%;
  margin:0;
  display: flex;
  flex-direction: column;
}

.container {
  overflow: hidden;
  clear: both;
  float: left;
  width: 100%;
}

#menu {
  margin: 0 auto;
  padding: 10px 0 0;
  float: left;
  left: 10%;
  list-style-type: none;
  list-style-image: none;
  list-style-position: outside;
  -moz-border-radius-topleft: 50px;
  -moz-border-radius-topright: 50px;
  -moz-border-radius-bottomright: 50px;
  -moz-border-radius-bottomleft: 50px;
  position: relative;
}
#menu li {
  padding: 0 0 10px;
  float: left;
  position: relative;
}
#menu a {
  padding: 0 25px;
  font-style: normal;
  text-transform: uppercase;
  font-weight: bold;
  font-family: Arial,Helvetica;
  float: left;
  font-stretch: normal;
  line-height: 25px;
  height: 25px;
  font-size-adjust: none;
  font-size: 12px;
  font-variant: normal;
  color: #333333;
  text-decoration: none;
}
#menu li:hover > a {
  color: #999999;
  background-color: #bacbeb;
}
#menu li:hover > ul {
  display: block;
}
#menu ul {
  margin: 0;
  padding: 0;
  background: #444444 none repeat scroll 0%;
  list-style-type: none;
  list-style-image: none;
  list-style-position: outside;
  display: none;
  position: absolute;
  top: 35px;
  left: 0;
  z-index: 99999;
  -moz-border-radius-topleft: 5px;
  -moz-border-radius-topright: 5px;
  -moz-border-radius-bottomright: 5px;
  -moz-border-radius-bottomleft: 5px;
}
#menu ul li {
  margin: 0;
  padding: 0;
  float: none;
  display: block;
}
#menu ul li:last-child {
}
#menu ul a {
  padding: 10px;
  height: auto;
  line-height: 1;
  display: block;
  white-space: nowrap;
  float: none;
  text-transform: none;
}
*:first-child + html #menu ul a {
  height: 10px;
  width: 150px;
}
#menu ul a:hover {
  background: #0186ba none repeat scroll 0%;
}
#menu ul li:first-child a {
  -moz-border-radius-topleft: 5px;
  -moz-border-radius-topright: 5px;
  -moz-border-radius-bottomright: 0;
  -moz-border-radius-bottomleft: 0;
}
#menu ul li:first-child a:after {
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-bottom: 8px solid #444444;
  content: '';
  position: absolute;
  left: 30px;
  top: -8px;
  width: 0;
  height: 0;
}
#menu ul li:first-child a:hover:after {
  border-bottom-color: #04acec;
}
#menu ul li:last-child a {
  -moz-border-radius-topleft: 0;
  -moz-border-radius-topright: 0;
  -moz-border-radius-bottomright: 5px;
  -moz-border-radius-bottomleft: 5px;
}
#menu:after {
  visibility: hidden;
  display: block;
  font-size: 0;
  content: " ";
  clear: both;
  height: 0;
}
* html #menu {
}
*:first-child + html #menu {
}
#menu ul li:first-child a:after {
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-bottom: 8px solid #444444;
  content: '';
  position: absolute;
  left: 30px;
  top: -8px;
  width: 0;
  height: 0;
}
#menu ul li:first-child a:hover:after {
  border-bottom-color: #04acec;
}


#logo{
position:fixed;
left:50%;
top:50%;
transform: translate(-50%, -50%);
}

#footer {
   position:fixed;
   left:0px;
   bottom:0px;
   
   width:100%;
   background:#999;
   text-align: center;
        font-family: sans-serif;
        color: whitesmoke;
   }

   
   
 #contacto {
display: table;
width: 100%;
margin: 0 auto;
}

#fila {
display: table-row;
}

#col1_contacto, #col2_contacto, #col3_contacto {
display: table-cell;
color: #000;
width: 30%;
font-weight: bold;
}

#col1_contacto {
background-color: #F00;
}

#col2_contacto {
background-color: #FF0;
}

#col3_contacto {
background-color: #00F;
}


.fondo_factura {
/* Permalink - use to edit and share this gradient: http://colorzilla.com/gradient-editor/#b9caea+0,d9edf2+26,b9caea+50,d9edf2+71,dee7f7+100 */
background: #b9caea; /* Old browsers */
background: -moz-linear-gradient(top, #b9caea 0%, #d9edf2 26%, #b9caea 50%, #d9edf2 71%, #dee7f7 100%); /* FF3.6-15 */
background: -webkit-linear-gradient(top, #b9caea 0%,#d9edf2 26%,#b9caea 50%,#d9edf2 71%,#dee7f7 100%); /* Chrome10-25,Safari5.1-6 */
background: linear-gradient(to bottom, #b9caea 0%,#d9edf2 26%,#b9caea 50%,#d9edf2 71%,#dee7f7 100%); /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#b9caea', endColorstr='#dee7f7',GradientType=0 ); /* IE6-9 */
  width: 100%;
  height: 100%;
  /*IMPORTANTE*/
  justify-content: center;*/
  align-items: center;*/
}

.cuadro_factura {


  border-style: solid;
  border-width: medium;
  background: white;
position:fixed;
left:50%;
top:50%;
transform: translate(-50%, -50%);
  
}

label {
  font-family: 'Helvetica Neue',Helvetica,Arial,sans-serif;  
  text-align: left;
  padding-left: 8px;
  margin-bottom: 8px;
  color: #000033;
  font-size: 14px;
  font-weight: normal;
  display: block;
  width: 140px;
}
label span {
  text-align: left;
  font-size: 12px;
  color: #333333;
  font-weight: normal;
}

input {
  text-align: left;
}

.form-select {
  text-align: left;
  border: 1px solid #999999;
  background-color: #ffff99;
  padding: 5px 10px;
  font-family: 'Helvetica Neue',Helvetica,Arial,sans-serif;
  font-size: 14px;
  margin-bottom: 15px;
  width: 340px;
}

.form-input-fecha {
  text-align: left;
  border: 1px solid #999999;
  padding: 5px 10px;
  display: block;
  height: 15px;
  margin-bottom: 15px;
  color: #000000;
  background-color: #ffff99;
  font-family: 'Helvetica Neue',Helvetica,Arial,sans-serif;
  font-size: 14px;
}
.form-input-monto {
  text-align: left;
  border: 1px solid #999999;
  padding: 5px 10px;
  display: block;
  height: 15px;
  margin-bottom: 15px;
  color: #000000;
  background-color: #ffff99;
  font-family: 'Helvetica Neue',Helvetica,Arial,sans-serif;
  font-size: 14px;
  width: 90px;
}

.form-input-serie {
  text-align: left;
  border: 1px solid #999999;
  padding: 5px 10px;
  display: inline;
  height: 15px;
  margin-bottom: 15px;
  color: #000000;
  background-color: #ffff99;
  font-family: 'Helvetica Neue',Helvetica,Arial,sans-serif;
  font-size: 14px;
  width:35px;
  }

.form-input-numero {
  text-align: left;
  border: 1px solid #999999;
  padding: 5px 10px;
  height: 15px;
  margin-bottom: 15px;
  color: #000000;
  background-color: #ffff99;
  font-family: 'Helvetica Neue',Helvetica,Arial,sans-serif;
  font-size: 14px;
  width: 100px;
  display: inline;
    }
  
  .form-btn {
  border: 1px solid #0d3d6a;
  padding: 10px;
  font-family: 'Helvetica Neue',Helvetica,Arial,sans-serif;
  font-style: normal;
  font-variant: normal;
  font-weight: bold;
  font-size: 12px;
  line-height: normal;
  font-size-adjust: none;
  font-stretch: normal;
  text-align: center;
  color: #ffffff;
  cursor: pointer;
  position: relative;
  background-color: #1d83e2;
  width: 30%;
 

    font-weight: 600;
	
}
.form-btn:active {
  border: 1px solid #1d83e2;
  background-color: #0d3d6a;
}

.form-btn:hover {
    color: #1883ba;
    background-color: #ffffff;
}