/*{margin:0;padding:0;}:focus,:active {outline:0}ul,ol{list-style:none}img{border:0}*/

body{
    font: .74em Sans-Serif; 
    background: #3EA1FF url(../images/fondoprin.png) repeat;
    color:white;
    line-height: 1.6em;
}
header{
    margin: 20px;
    padding: 10px;
    height: 50px;
    background-color: yellow;
    color: black;
    opacity: 0.8;
    text-align: center;
    border-radius: 80px;
}

h1 { 
    letter-spacing: -0.04em; 
    font-size: 1.8em; 
    text-shadow: 1px 1px 1px white; 
}
h2 { 
    font-size: 1.4em; 
    text-shadow: 1px 1px 1px yellow; 
    margin: 0 0 10px; 
    color: white; 
    border-bottom: 2px dotted yellow;
    text-align: center;
}



#cuerpo {
    text-align: justify;
    margin:30px;
}

img#smartphones{
    display: block;
    border: 5px solid yellow;
    border-radius: 80px;
    margin: 0 auto;
}

#cuerpo h2{
    margin-top:50px;
    margin-bottom:-10px;
}

#cuerpo a {
    color: yellow;
    text-decoration: none;
    border-bottom: 2px dotted yellow;
}

#cuerpo a:hover {
    color: red;
    border-bottom: 2px dotted red;
}

#cuerpo table{
    margin-top:-10px;
    width: 300px;
    padding: 15px;
    padding-left: 0px;
    text-align: center;
}

#cuerpo table th {
    background-color: yellow;
    color: black;
    padding: 5px 15px;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
}

#cuerpo table td {
    border: 1px solid silver;
    padding: 5px 15px;
}

img#android{

    width: 200px; height: 200px;
    border: 3px solid yellow;
    border-radius: 10px;
}

img#ios{
    width: 200px; height: 200px;
    border: 3px solid yellow;
    border-radius: 10px;
    
}

img#windows{
    width: 200px; height: 200px;
    border: 3px solid yellow;
    border-radius: 10px;

}

aside{
    border: 1px solid white;
    
    padding: 15px;
}

aside p{
    font-size: 1.2em; 
    margin: 0 0 6px; 
}

footer{
    background-color: yellow;
    color:black;
    text-align: right;
    opacity: 0.5;
}

#form {
    text-align: justify;
    margin:30px;
}

#form p {
    color: black;
}