h1 {
    color: pink;
    text-align: center;
    font-size: 80px;
}

header {
    background-image: url(../assets/YouTube\ banner.jpg);
}

body {
    background-color: rgb(255, 255, 255);
}

h3{
    color: pink;
    text-align: center;
    font-size: 50px;
}

img {
    margin-left: 350px;
    margin-top: 100px;
    margin-bottom: 100px;
    width: 400px;
    height: 400px;
}

.voltar {
    background-image:url(../assets/back.gif);
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    text-indent: -9999px;
    overflow: hidden;
    border-radius: 8px;
    display: inline-block;
    width: 80px;
    height: 40px;
}