section.premissas {
    padding: 120px 0;
    font-size: 16px;
    line-height: 30px;
    background: url(../img/bg-premissas.jpg) right bottom no-repeat;
    background-attachment: fixed;
}

section.premissas li {
    position: relative;
    padding-left: 100px;
    margin-bottom: 30px;
}

section.premissas li img {
    position: absolute;
    left: 0;
    top: 0;
}

section.premissas li h3 {
    font-size: 18px;
    font-weight: bold;
}