.contenidocertificaado{
    display: block;
    width: 100%;
    margin: 0 auto;
    position: relative;
    max-width: 1140px;
    margin: 0 auto;
    position: relative;
}
.ancho90border{
    position: relative;
    float:left;
    width: 90%;
    margin: 5%;
    border-radius: 10px 10px 10px 10px;
    -moz-border-radius: 10px 10px 10px 10px;
    -webkit-border-radius: 10px 10px 10px 10px;
    border: 3px solid #d9d5d9;
}

.row-txt-box {
    overflow: hidden;
    padding-bottom: 40px;
    padding-left: 140px;
    padding-right: 140px;
}

.row-txt-box {
    overflow: hidden;
    padding-bottom: 40px;
    /*padding-left: 140px;
    padding-right: 140px;*/
    padding-left: 3%;
    padding-right: 3%;
}

.row-logo img {
    max-width: 100%;
}
.img-logo-conocenos {
    margin-bottom: 40px;
}
.right-txt-box {
    float: right;
    width: 70%;
    box-sizing: border-box;
    padding-left: 32px;
}
.left-txt-box {
    float: left;
    width: 30%;
    box-sizing: border-box;
}

.margin-top3per{
    margin-top: 3%;
}

.left-txt-box img {
    max-width: 100%;
    margin-top: 51px;
}

.right-txt-box h4 {
    font-family: 'montserratbold', Helvetica, sans-serif;
    color: #E1523D !important;
    font-size: 18px;
    line-height: 24px;
    border-bottom: 4px solid #E1523D;
    padding-bottom: 27px;
    margin-bottom: 38px;
}

.right-txt-box p {
    font-size: 16px;
    line-height: 32px;
    color: #4A4A4A;
    margin-bottom: 40px;
}

.listadocertificados{
    font-size: 16px;
    line-height: 32px;
    color: #4A4A4A;
    margin-bottom: 40px;
    margin-left: 40px;
}

@media screen and (max-width: 767px){
    .left-txt-box {
        text-align: center;
    }
    .left-txt-box, .right-txt-box {
        float: inherit;
        width: 100%;
    }
    .right-txt-box {
        padding-left: 0px;
    }
    box {
        float: inherit;
        width: 100%;
    }
}