*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: Helvetica;
}

/* cabeçalho */
header{
    background-color: rgb(7, 79, 160);
    color: #fff;
    padding: 30px;
    text-align: center;
    border-bottom: 3px solid rgb(3, 18, 104);
}

/* conteúdo */
.container{
    background-color: #eee;
    min-height: 60vh;
    padding: 50px;
}

.introducao p{
    padding:15px;
    line-height: 25px;
}

h2{
    padding: 15px;
}

h3{
    padding-top: 10px;
}

.paragrafos p{
    padding: 15px;
    line-height: 25px;
}

.img-1{
    text-align: center;
}

.img-2{
    text-align: center;
}

.img-3{
    text-align: center;
}

a{
    color: blue;
}

footer{
    background-color: rgb(7, 79, 160);
    color: #fff;
    border-top: 3px solid rgb(3, 18, 104);
    text-align: center;
    padding: 60px;
}

.name{
    padding-top: 10px;
}