section article:nth-child(2n+1) {
    background-color: rgba(108, 194, 74, 0.35);
}

/*section article:nth-child(2) {
    border-top: 2px solid grey;
}*/

section article {
    overflow: auto;
    padding: 50px;
/*    border-bottom: 2px solid grey;*/
}

section article img {
    height: 300px;
    width: 300px;
    padding-right: 50px;
    float: left;
}

section article h3 {
    color: forestgreen;
}

.checkmark {
    color: green;
}

.crossmark {
    color: red;
}

.warningsign {
    color: orange;
}

.checkmark, .crossmark, .warningsign {
    font-weight: bold;
    cursor: help;
}

@media screen and (max-width: 600px) {
    section article {
        padding: 10px;
    }

    section article img {
        float: none;
        display: block;
        margin: auto;
        padding-right: 0;
        padding-bottom: 20px;
    }
}

body section {
    padding: 0;
}

section h2 {
    padding: 15px;
    margin-top: 0;
}