.certificates {
    padding-bottom: 30px;
    text-align: center;
    margin-bottom: -50px;
}

.certificates img {
    max-height: 200px;
    max-width: 260px;
    margin: 0 auto;
    margin-bottom: 25px;
    border-radius: 4px;
}

.certificates-head {
    /*font-size: 1.2em;*/
    padding: 15px 5px 1px 5px;
    position: relative;
    top: -50px;
    margin: 0 auto;
}

.certificates-head .button {
    border: none;
    background-color: #1f7549;
    color: #fff;
    font-weight: bold;
    text-align: center;
    padding: 15px 25px;
    margin: 0 auto;
    border-radius: 4px;
}

.certificates-head .button:hover {
    background-color: #248956;
}

.certificates-head a.button {
    text-decoration: none;
    color: #fff;
}