.problem-description {
    background:#f5f2f0;
    font-family:consolas;
    line-height:24px;
    padding:20px;
}

.results-matrix {
    font-size:0;
    text-align:center;
}

.results-matrix img {
    border:3px solid #414141;
    vertical-align:middle;
    width: 100%;
}

.results-matrix a {
    display:inline-block;
    line-height:125px;
    margin:5px 2px;
    vertical-align:top;
    width:110px;
}