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

html {  
    font-family: sans-serif;
    font-size:100%; 
}

html, body {  
    height: 100%;
    width: 100%;        
}

body {   
    font-family: 'Open Sans', sans-serif;
    font-size: 100%;
    color: #444;
    font-weight: 400;  
    background-color:whitesmoke;
}

#bg {
    width: 100%;
    min-width: 1920px;
    min-height: 100%;
    height: auto;
    position: fixed;
    top: 0;
    left: 0;
    opacity: 0.25;
    filter: Alpha(Opacity=25);
    z-index: -999999;
}

.wrapper {
    display:table;  
    width:100%; 
    max-width:1000px;  
    margin:0 auto;
}

header{
    display:table;
    padding:15px;
    background:white;  
    width:100%;
    margin-bottom:5px;
}

header a{
    display:block;    
}

#divLogo {
    float:left;
    height:62px;
    width:156px;   
    background:url(../Images/LogoSDTec.png) no-repeat center;
    background-size:75% auto;  
}

section {
    display: table;
    width: 100%;
    height: 100%;
    min-height: 700px;
    margin: 0 auto;
    overflow: hidden;
    background: white;   
}

iframe {
    width:1px;
    min-width:100%;
    min-height:200px;
    border:none;
    overflow:hidden;
}

footer{
    display:table;
    font-size:80%;
    padding:15px;
    background:white;
    width:100%;
    margin-top:5px;
}

footer ul {  
    list-style: none; 
    padding: 0;
    margin:0;
    overflow: hidden;
}

footer ul li{  
    color:#444;
    float:left;
    margin-right:8px;
}

footer ul li a{   
    color:#444;
    margin:0;
    padding:0;
}

a:link{
    text-decoration:none;
}

#footer_ulLeft{
    float:Left;
}

#footer_ulRight{
    float:right;
}

#preloader {
    display: table;
    z-index: 99;
}

.loader {
    border: 10px solid whitesmoke;
    border-radius: 50%;
    border-top: 10px solid #3276b1;
    border-bottom: 10px solid #3276b1;
    width: 80px;
    height: 80px;
    position: absolute;
    left: 50%;
    margin-left: -50px;
    top: 35%;
    -webkit-animation: spin 2s linear infinite;
    animation: spin 2s linear infinite;
    z-index: 2000;
    text-align: center;
    vertical-align: central;
    font-size: 80%;
    color: #3276b1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.loader::after {
    content: 'loading';
}

.btn-default {
    color: #333333;
    background-color: rgba(255, 255, 255, 0.70);
    border-color: #cccccc;
}

.btnScroll {
    display:none;
    position: fixed;
    bottom: 20px;  
    z-index: 99;
    right:50px; 
}

.btn-group-scrollupdown {
    display:table;
    float:right;
}

.btn-default:hover,
.btn-default:focus,
.btn-default:active,
.btn-default.active,
.open .dropdown-toggle.btn-default {
    color: #333333;
    background-color: rgba(235, 235, 235, 0.70);
    border-color: #adadad;
}

.btn-sm,
.btn-xs {
    padding: 4px 8px;
    font-size: 75%;
    line-height: 1.5;
    border-radius: 3px;
}

.li_load_content{   
    float:right;
    cursor:pointer;
    font-size:85%;
    color:lightgrey;
    margin-top:35px;
}

/* ---------------------------------------------------------------
    MEDIA QUERIES 
----------------------------------------------------------------*/
@media (max-width: 767px) {
    section{
        width:100%;
    }
    
    #nav{   
        width:auto;
        font-size:90%;
        min-width:320px;
        margin:0;
        display:table;
    }

    #nav a{
        float:left;
        display:block;
        padding:5px 5px;
        color:whitesmoke;
        margin-right:5px;  
        cursor:pointer; 
        border:thin solid grey;
        text-decoration:none;      
    }

    .btnScroll {       
        bottom: 25px;       
        right: 25px;
    }

}