html,
body {
    margin: 0px;
    padding: 0;
    width: 100%;
    height: 100%;
}

header {
    background-color: blanchedalmond;
    position: relative;
    border: 10px solid #000;
    width: 100%;
    padding: 50px 0px;
    box-sizing: border-box;
    margin-top: 50px;
}

main {
    background-color: rgb(181, 241, 243);
    padding: 100px 50px;
}
footer {
    background-color: darkgray;
    padding: 50px 0;
}
p {
    font-size: 1rem;
}
h1 {
    font-size: 2.5rem;
}
h2 {
    font-size: 2rem;
}
h3 {
    font-size: 1.5rem;
}

.absolute1 {
    position: absolute;
    background-color: rgb(247, 154, 154);
    width: 50%;
    left: 10%;
    z-index: 2;
}

.absolute2 {
    position: absolute;
    background-color: rgb(169, 169, 169);
    width: 50%;
    left: 20%;
    top: 20%;
}