body {
    background-color: rgb(255, 0, 0);
}
h1{
    background-color: white;
    color: black;
}
a:link{
    background-color: purple;
}
a:hover{
    background-color:green;
}
a:visited{
    background-color: yellow;
}
img{
    border-radius: 20px;
    border:solid 50px green;
    box-sizing: border-box
    ;

}