css
body {
    background-image: linear-gradient(to bottom, #f4435, #ff69c0);
    background-size: 100% 100px;
    background-repeat: no-repeat;
}

body, html {
    width: 100%;
    height: auto;
    margin: 0;
    font-family: "Open Sans", sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: #000;
    background-color: #fff;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(45deg, #f4435, #ff69c0);
    background-size: 100% 100px;
    background-repeat: no-repeat;
}

h1 {
    font-family: "Open Sans", sans-serif;
    font-size: 24px;
    color: #000;
    background-color: #f7b2c8;
    padding: 10px 20px;
    border: 2px solid #000;
    border-radius: 10px;
    box-shadow: 4px 4px 0px rgba(0,0,0,0.5);
}

h1::before {
    content: "";
    position: absolute;
    top: -10px;
    left: -20px;
    width: 30px;
    height: 30px;
    background-color: #f4435;
    border: 2px solid #000;
    border-radius: 10px;
    box-shadow: 4px 4px 0px rgba(0,0,0,0.5);
}

h1 a {
    text-decoration: none;
    color: #000;
    background-color: #f7b2c8;
}

h1 a:hover {
    text-decoration: none;
    color: #fff;
    background-color: #f4435;
}

h1 a:after {
    content: "";
    position: relative;
    top: -20px;
    left: 50%;
    width: 20px;
    height: 20px;
    background: url("https://example.com/arrow.png");
    background-size: 100%;
    display: inline-block;
}

h2 {
    font-family: "Open Sans", sans-serif;
    font-size: 18px;
    color: #000;
    background-color: #f7b2c8;
    padding: 5px 10px;
    border: 1px solid #000;
    border-radius: 8px;
    box-shadow: 3px 3px 0px rgba(0,0,0,0.5);
    text-decoration: none;
}

h2::before {
    content: "";
    position: relative;
    top: -5px;
    left: -10px;
    width: 20px;
    height: 20px;
    background-color: #f4435;
    border: 1px solid #000;
    border-radius: 8px;
    box-shadow: 3px 3px 0px rgba(0,0,0,0.5);
}

h2 a {
    text-decoration: none;
    color: #000;
    background-color: #f7b2c8;
}

h2 a:hover {
    text-decoration: none;
    color: #fff;
    background-color: #f4435;
}

h2 a:after {
    content: "";
    position: relative;
    top: -10px;
    left: 50%;
    width: 20px;
    height: 20px;
    background: url("https://example.com/arrow.png");
    background-size: 100%;
    display: inline-block;
}