@charset "UTF-8";

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

body{
    font-family: Arial, Helvetica, sans-serif;
    text-align: center;

    background-color: gray;
}

main{
    margin-top: 20px;
}

div#quadrado{
    font-size: 18px;
    width: 500px;
    padding: 20px;
    margin: auto;
    background-color: rgb(255, 255, 255);
    border-radius: 15px ;

    box-shadow: 5px 5px 10px rgba(0, 0, 0, 0.387);
}

h1{
    color: white;
}

h1, p{
    margin-bottom: 15px;
}

img{
    vertical-align: middle;
    border-radius: 50%;
}

footer{
    font-style: italic;
    margin-top: 20px;
}

a{
    color: rgb(255, 255, 255);
    text-decoration: none;
    text-shadow: 5px 5px 5px #00000077;
}

a:hover{
    color: yellow;
    text-decoration: underline;
}

a:active{
    color: red;
}

a#atualizar, a#atualizar:hover, a#atualizar{
    color: white;
    text-decoration: none;
}