body {
    text-align: center;
    font-family: 'Open Sans', sans-serif;
    color: #313131;
    background: #f2f2f2;
    margin: 0;
    padding: 0;
}

footer {
    background: #333;
    color: rgb(209, 209, 209);
    text-align: center;
    padding: 20px;
    margin-top: 40px;
}

header {
    background: #17882c;
    z-index: 100;
    position: fixed;
    width: 100%;
    top: 0;
    height: 120px;
}

header h1{
    font-size: 160%;
    text-align: left;
    color: #ffffff;
    padding: 0 15%;
}

header h2{
    font-size: 130%;
    text-align: left;
    color: #ffffff;
    padding: 0 15%;
}

nav {
    height: 50px;
    position: fixed;
    z-index: 101;
    width: 100%;
    
    background: #195128;
}

nav ul {
    list-style-type: none;
    text-align: left;
    padding: 0 15%;
}

nav li {
    display: inline;
    text-align: center;
    margin: 0 10px 0 0;
    border-right: 1px solid #76997f;
    padding: 0 5px;
    line-height: 1em;
}

nav li a {
    padding: 2px 10px 2px 10px;
    color: #ffffff;
    text-decoration: none;
}

nav li a:hover {
    background-color: #333333;
    border-radius: 20px;
    color: #ffffff;
}

#info {
    padding-top: 150px;
}

#info h1{
    padding: 0 15%;
    text-align: left;
}

#descricao{
    padding: 0 15%;
    text-align: left;
    color: #666;
}

#info a {
    border: 2px solid #151d14;
    background-color: #115803;
    border-radius: 20px; 
    padding: 5px 15px;
    font-size: 20px;
}

#sobre {
    padding: 0 15%;
    text-align: left;
}

#sobre p{
    text-indent: 30px;
}

#programa{
    padding: 0 15%;
    text-align: left;
}

#programa ul{
    padding-left: 0px;
}

#programa li{
    border: 1px solid #151d14;
    padding: 5px 15px;
    list-style: none;
    background-color: #e2e1e1;
    font-size: 17px;
    font-style: oblique;
}

#palestrantes{
    padding: 0 15%;
    text-align: left;
}
#palestrantes img{
    border: 2px solid #151d14;
    border-radius: 100px; 
    max-width: 150px;
    height: auto;
}

a:link {
    text-decoration: none;
}

a {
    color: #ffffff;
}

a:hover {
    color: #8d8b8b;
    size: 1px;
}