* {
    box-sizing: border-box;
}

body {
    background: #f1f2f2;
    font-family: 'Source Sans Pro', sans-serif;
    font-size: 18px;
    line-height: 1.5;
}

.card {
    position: relative;
    box-shadow: 0 8px 16px 0 rgba(0, 0, 0, 0.2);
    max-width: 500px;
    margin: auto;
    margin-top: 15%;
    text-align: center;
    font-family: arial;
    background: #fff;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    border-bottom: 80px solid #fff;
    border-right: 80px solid #7ac145;
    width: 0;
}

.card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    border-bottom: 80px solid #fff;
    border-left: 80px solid #7ac145;
    width: 0;
}

.inner {
    max-width: 350px;
    margin: auto;
    text-align: center;
    padding: 1em;
}

.title {
    color: grey;
    font-size: 18px;
}

.backBtn a {
    border: none;
    outline: 0;
    display: inline-block;
    padding: 8px 0;
    color: #fff;
    background-color: #7ac145;
    text-align: center;
    cursor: pointer;
    width: 100%;
    font-size: 18px;
    text-decoration: none;
    font-weight: bold;
}

a.icon {
    text-decoration: none;
    font-size: 22px;
    color: black;
}

.backBtn a:hover, a.icon:hover {
    opacity: 0.7;
}