*{
    margin:0;
    padding:0;
    border:0;
}
 
main{
    position: relative;
    width:90%;
    height:700px;
    background-color: aquamarine;
    margin: auto;
    font-size: 16px;
    color: blue;
    font-family: Verdana;
    text-align: center;

}
 
#cabecalho{
    position: relative;
    width:100%;
    height:120px;
    background-color: #FF0;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
}
 
#cabecalho h1{
    text-align: center;
    font-size:30px;
    color:blueviolet;
    

}
 
/*
.borda{
    border:5px solid red;
}*/
 
nav{
    position: relative;
    width:100%;
    height:50px;
    background-color: rgb(175, 207, 160);
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content:space-between;
}

nav a{
    position: relative;
    width: 100px;
    color: aqua;
    background-color: blue;
    text-decoration: none;
    padding: 5px;
    transition-duration: .25s;
}

nav a:hover{
    color: blue;
    background-color: aqua;
    transition: .25s all;
}

#lado_esquerdo{
    position: relative;
    width: 30%;
    height: 450px;
    background-color: rgb(199, 87, 184);
    float: left;
}

#lado_esquerdo div{
    position: relative;
    width: 90%;
    height: 180px;
    background-color: #ff0;
    margin: auto;
}

#lado_esquerdo aside{
    position: relative;
    width: 90%;
    height: 180px;
    margin: auto;
}

#meio{
    position: relative;
    width: 70%;
    height: 450px;
    background-color: pink;
    float: left;
}

footer{
    position: relative;
    width: 100%;
    height: 80px;
    background-color: black;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    clear: left;
}

footer h3{
    color: brown;
}