*{
    box-sizing: border-box;
    margin: 0;
    padding:0;
    font-family: Arial, Helvetica, sans-serif;
    
}

marker{
    background-color:aqua;
    color: black;
}

/*Navigation section*/
nav {
    height: 12vh;
    background: rgb(123, 194, 218);
    position: fixed;
    font-family: Arial, Helvetica, sans-serif;
}

.nav-item{
    
    float: right;
    text-align: center;
    transition: all 0.3s linear;
}

ul{
    width: auto;
    float: right;
}

li{
    display: inline-block;
    padding: 5px 10px;
    padding-top: -30px;
    font-size: 20px;
}

a{
    text-align: center;
    color: black;
    text-decoration: none;
}

a:hover{
color: rgb(41, 125, 194);
transition: 0.5s;
cursor: pointer;
}

/*Banner section*/
.banner{
    background-color:#4dc3c7;
}


/*About section*/
.about{
    background-color: lightblue;
    padding-left: 15%;
    padding-right: 15%;
    padding-top: 3vh;
    padding-bottom: 3vh;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 50px;
}

.a_detail{
text-align: center;
line-height: 35px;
font-size: 25px;
}

/*Introduction section*/
.intro{
    padding-top: 3vh;
    padding-bottom: 3vh;
    padding-left: 15%;
    padding-right: 15%;
    background-color:aliceblue;
    font-family: Arial, Helvetica, sans-serif;
}

.intro_description{
    line-height: 25px;
    font-size: 18px;
    text-align: justify;
    padding-bottom: 10px;
    
}

.center{
    display: block;
    margin-left: auto;
    margin-right: auto;
    width:70%; 
}

h1{
    padding-top: 10px;
    padding-bottom: 15px;
    font-size: 30px;
    text-align: center;
}

/*Program section*/
.pro{
    padding-top: 3vh;
    padding-bottom: 3vh;
    padding-left: 15%;
    padding-right: 15%;
    background-color: lightblue;
    font-family: Arial, Helvetica, sans-serif;
}

.itin{
    background-color: aliceblue;
    border: 1px solid #3a5b7d;
    text-align: left;
    padding: 8px;
    margin-top: 10px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 10px;
    width:70%;
  }
  
  th{
    text-align: center;
    font-size: 20px;
  }
  td{
    padding: 15px;
    line-height: 25px;
    font-size: 18px;
  }
  tr:nth-child(even) {
    background-color: #ddd;
  }

/*Keynote speaker section*/
.speaker{
    background-color: lightblue;
    padding-top: 3vh;
    padding-bottom: 3vh;
    padding-left: 15%;
    padding-right: 15%;
    font-family: Arial, Helvetica, sans-serif;
}

.Ltitle{
	font-family: "Titillium Web", sans-serif;
  	font-weight: 600;
  	font-style: normal;
    text-align: center;
	text-shadow: 1px 1px #fff;
	color:coral;
    font-size: 50px;
    padding-top: 20px;
}

.Sdetail{
    text-align: center;
    line-height: 0.8;
    padding-bottom: 30px;
	font-size: 30px;
}

.ab_header{
    padding-top: 5px;
    padding-bottom: 10px;
    font-size: 18px;
}

.ab_des{
    text-align: justify;
    line-height: 25px;
    padding-bottom: 10px;
    font-size: 18px;
}

.sup{
    position: relative;
    bottom: 1ex;
    font-size: 80%;
}

/*Poster section*/
.poster{
    background-color: lightblue;   
    padding-top: 3vh;
    padding-bottom: 3vh;
    padding-left: 15%;
    padding-right: 15%; 
    font-family: Arial, Helvetica, sans-serif;
}

.column{
    column-count: 3;
    column-gap: 10px;
    padding-top:1vh;
    text-align: center;
    font-size: 16px;
}

.button{
    width: 10vw;
	margin-top: 3vh;
	margin-right: auto;
	margin-bottom: 3vh;
	margin-left: auto;
	padding-top: 2.5vh;
	padding-right: 1vw;
	padding-bottom: 2.5vh;
	padding-left: 1vw;
	text-align: center;
	vertical-align: middle;
	border-radius: 0px;
	text-transform: uppercase;
	font-weight: bold;
	letter-spacing: 2px;
	border: 3px solid #002271;
	color: #002271;
	transition: all 0.3s linear;
}

.button:hover{
    background-color: #FEFEFE;
	cursor: pointer;
}


/*Map section*/
.map{
    background-color:aliceblue;  
    color: black; 
    padding-top: 3vh;
    padding-bottom: 3vh;
    padding-left: 15%;
    padding-right: 15%;
    font-family: Arial, Helvetica, sans-serif;
}

.map_des{
    padding-top:1vh;
    padding-bottom: 2vh;
    font-size: 18px;
    line-height: 25px;
    text-align: center;
}

/*Committee section*/
.committee{
    background-color:lightblue;   
    padding-top: 3vh;
    padding-bottom: 3vh;
    padding-left: 15%;
    padding-right: 15%;
    font-family: Arial, Helvetica, sans-serif;
}

.column2{
    column-count: 3;
    column-gap: normal;
    line-height: 25px;
    padding-left: 4.5vw;
    padding-top:1vh;
    padding-right: 12px;
    text-align: left;
    font-size: 16px;
}

/*Contact Us section*/
.contact{
    background-color:rgb(150, 149, 149);   
    padding-top: 3vh;
    padding-bottom: 3vh;
    padding-left: 5vw;
    padding-right: 5vw;
    font-family: Arial, Helvetica, sans-serif;
}

.copyright{
    background-color:rgb(109, 108, 108);   
    padding-top: 3vh;
    padding-bottom: 3vh;
    padding-left: 5vw;
    padding-right: 5vw; 
    text-align: center;
    text-transform: capitalize;
    font-family: Arial, Helvetica, sans-serif;
}