app.css

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Cairo', sans-serif;
}

section {
    display: grid;
    place-items: center;
    min-height: 100vh;
}

section .container {
    width: 95%;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 20px 20px 75px 20px;
    box-shadow: 0px 0px 14px #cac6c6b7;
    position: relative;
}

section .container h1 {
    color: #43a047;
    position: relative;
    font-size: 2rem;
}

section .container h1:after,
section .container h1:before {
    content: "";
    width: 120px;
    height: 2px;
    background-color: #43a047;
    position: absolute;
    bottom: 0px;
    left: 50%;
    transform: translateX(-50%);
    -webkit-transform: translateX(-50%);
    -moz-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    -o-transform: translateX(-50%);
}

section .container h1:before {
    width: 90px;
    bottom: -5px;
}

section .container p.aya {
    margin: 5px auto;
    font-size: 1.5rem;
}

section .container h2 {
    font-size: 1rem;
    margin: 10px auto;
}

section .container button {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    -webkit-transform: translateX(-50%);
    -moz-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    -o-transform: translateX(-50%);
    background-color: #43a047;
    border-radius: 5px;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    -ms-border-radius: 5px;
    -o-border-radius: 5px;
    border: 1px solid #fff;
    padding: 10px 15px;
    color: #fff;
    font-family: "Cairo", "sans-serife";
    cursor: pointer;
    transition: .2s linear;
    -webkit-transition: .2s linear;
    -moz-transition: .2s linear;
    -ms-transition: .2s linear;
    -o-transition: .2s linear;
    box-shadow: none;
}

section .container button:hover {
    box-shadow: 0px 0px 10px #cac6c6b7;
    background-color: #fff;
    border-color: #43a047;
    color: #43a047;
}

section .container span {
    display: inline-block;
    width: calc(95% / 3);
    color: #43a047;
    font-weight: bold;
}

@media(max-width:680px) {
    section .container span {
        display: inline-block;
        width: calc(95% / 2);
    }
}

@media(max-width:470px) {
    section .container span {
        display: inline-block;
        width: calc(95% / 1);
    }
}

section>p {
    font-weight: bold;
}

section>p a {
    text-decoration: none;
    color: #43a047;
}

section>p a:hover {
    text-decoration: underline;
}

section>p a:focus {
    color: #43a047;
    text-decoration: underline;
}