*{
    margin:0;
    border: 0;
    padding:0;
}
 
main{
    position: relative;
    width:90%;
    height:800px;
    background-color: aqua;
    font-family: verdana;
    color:#FFF;
    text-align: center;
    margin:auto;
    font-size: 25px;
}
 
#cabecalho_pagina{
    position: relative;
    width:100%;
    height:120px;
    background-color: #000;
    display: flex;
    flex-direction: row;
    align-items: center;        
    justify-content: center;
}
 
#nav_superior{
    position: relative;
    width:100%;
    height:35px;
    background-color: #009;
    text-align: left;
}
 
 
#nav_lateral{
    position: relative;
    width:20%;
    height:600px;
    background-color:#CCCCAA;
    float:left;    
}
 
#meio{
    position: relative;
    width:60%;
    height:600px;
    background-color:pink;
    float:left;    
}
 
aside{
    position: relative;
    width:20%;
    height:600px;
    background-color:rgb(197, 43, 102);
    float:left;    
}
 
footer{
    position: relative;
    width:100%;
    height:80px;
    background-color: #000;
    clear:left;
}
 
#cabecalho_meio{
    position: relative;
    width:95%;
    height:35px;
    background-color: #FFF;
    color:#000;
    margin:auto;
}
 
#conteudo_meio{
    position: relative;
    width:95%;
    height:200px;
    background-color: #9b4d0c;
    margin:auto;
    margin-top:10px;
}
 
p{
    position: relative;
    width:95%;
    height:150px;
    background-color: #9162b8;
    margin:auto;
    margin-top:10px;
    text-align: left;
    color:#000;
    font-size:16px;
}
 
#alinha{
    position: relative;
    width:95%;
    height:130px;
    /*background-color: #FF0;*/
    margin:auto;
    margin-top:10px;
    display:flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}
 
.caixa{
    position: relative;
    width:32%;
    height:120px;
    background-color:#999;
}