* {
    outline:none;
}

body {
    font-size:.85em;
    font-family:"Segoe UI", Verdana, Helvetica, Sans-Serif;
    color:#232323;
    background-color:#fff;
    margin:0;
    padding:0;
}

header, footer, nav, section, img {
    display: block;
}

.cuadroCentral {
    width:550px; 
    background-color:white; 
    border:solid 1px #e5e5e5;
    text-align:center;
    color:#666;
    padding:50px;
}

.cuadroCentral img {
    width:150px;
    margin:0px auto;
}

.cuadroCentral h1
, .cuadroCentral h2 {
    font-weight:normal;
}

.navegadores {
    height:100px; 
    text-align:center;
    margin-top:25px;
}

.navegadores img {
    height:100px;
    width:100px;
    float:left;
    border:none;
    margin:5px 4px;
}