*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.container{
    height: 800px;
    max-width: 1100px;
    background-color: antiquewhite;
    padding: 200px;
}
.box{
    width: 100%;
    height: 100%;
    background-color: red;
    display: flex;
    text-align: center;
    justify-content: center;
    align-items: center;
}
#myButton{
    background-color:aliceblue;
    height: 50px;
    width: 50px;
    font-size: larger;
}