*{
  margin: 0px;
  padding: 0px;
}
a:link {
  color: #FFF;
  text-decoration: none;
}
a:hover {
  color: #969696;
}
  a:visited {
  color: #5e5e5e;
  text-decoration: none;
}
body{
  background-color: #152633;
  color:#ffffff;
  font-family: Arial, Helvetica, sans-serif;
  margin-left: auto;
  margin-right: auto; 
}
.logo{
  position: left;    
}
nav{
 padding: 10px;
 position: relative;  
 text-align: right;
}
.titulo{
  background-image: url(imagem/fundo.jpg);
  background-repeat: no-repeat;
  font-size: 90px;
  font-family: 'Courier New', Courier, monospace;
  text-align: center;
  color: #FFF;
}
.box{
  
}
.dias{
  background-color: #152633;
  font-size: 30px;
  font-family: 'Courier New', Courier, monospace;
  text-align: center;
  color: #FFF;
}
.assunto1{
  display: flex;
  align-items: center;
  Justify-content: space-around;
  background-color: #d6d5d5;
  color: #000;
  border: 2px solid black;
  margin: 10px;
  padding: 10px;
}
.palestrante{
  margin: 10px;
  padding: 10px;
  width: 60%;
}
.assunto2{     
  background-color: #152633;
  color: #FFF;
  border: 2px solid black;
  padding: 2rem;
  width: 90%;
}
p{
  padding: 10px;
}
.dia{
  padding: 0px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}
footer {
  color: #FFF;
  position: relative;
  bottom: 0;  
}