.main{
    width: 940px;
    background-color: aquamarine;
    border: 1px solid black;
    margin: auto;
    border-radius: 15px;
}

.main a{
    display: flex;
    justify-content: center;
}

img{
    width: 500px;
}

h1, h3{
    text-align: center;
    text-decoration: underline;
}

h4{
    text-align: center;
}

p{
    text-align: center;
}

ul li{
    color: aquamarine;
    list-style-type: none;
}