@charset "UTF-8";
/* versão mobile first*/
*{
    font-family: Arial, Helvetica, sans-serif;
    margin: 0px;
    padding: 0px;
    box-sizing: border-box;
}
header{
    text-align: center;
    background-color: skyblue;
    padding: 8px; }
body, html{
    height: 100vh;
}
body{
    background: black url(../midia/back-phone.jpg) no-repeat;
    background-size: cover;
    background-position: center center;
}
main{
    background-color: rgba(255, 255, 255, 0.842);
    width: 90vw;
    margin: auto;
    border-radius: 10px;
    padding: 10px;
}
h1{
    text-align: center;
}
img{
    display: block;
    margin: auto;
}

img#phone{ display: block;}
img#tablet{ display: none;}
img#print{ display: none;}
img#pc{ display: none;}
img#tv{display: none;}