*{
    margin: 0px;
    padding: 0px;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}
header {
    height: 80px;
    background-color: rgb(255, 0, 0);
    display: flex;
    padding: 0px 20px;
}
nav {
     flex: 1;
}
nav ul {
    display: flex;
    height: 80px;
    align-items: center;
    gap: 10px;
    justify-content: space-evenly;
}
nav ul li {
    list-style: none;
}
nav ul li a {
    text-decoration: none;
    color: rgb(0, 255, 255);
}
main {
    min-height: calc(100vh - 80px - 70px);
    background-color: rgb(0, 255, 0);
    padding: 20px;
}
footer {
    height: 70px;
    background-color: rgb(0, 0, 255);
}
footer address {
    color: rgb(255, 255, 0);
    height: 70px;
    text-align: center;

}
main img{
    width: 50%;
}