.ajustar{
  clear: both;
  margin: 0 !important;
  padding: 0 !important;
}

body{
    margin: 0;
    font-size: 16px;
    font-family: Helvetica, sans-serif;
    color: #525252;
}

a, p, h1, h2{
    margin: 0;
    text-decoration: none;
}

header{
    width: 940px;
    height: 100px;
    margin: 0 auto;
    padding: 10px;
    background: #2ea6c3;
    color: #fff;
}

header p{
    display: inline-block;
    font-size: 2.2em;
}

header p span{
    font-weight: 600;
}

nav{
    width: 960px;
    margin: 0 auto;
    padding-bottom: 20px;
}

nav a{
    color: #2ea6c3;
    font-size: 1.4em;
    font-weight: 600;
    margin-right: 0.6em;
    margin-bottom: 4px;
    display: inline-block;
}

nav a:hover{
    color: #3bd9ff;
}

main{
    width: 960px;
    margin: 0 auto;
}

section{
    width: 650px;
    float: left;
    background: #2ea6c3;
}

section article{
    margin: 10px;
}

aside{
    width: 300px;
    float: right;
}

aside h1{
    font-size: 1.2em;
    margin-bottom: 0.6em;
}

aside h2{
    font-size: 1em;
    margin-top: 1.25em;
}

aside p{
    font-size: 0.7em;
}

aside .item{
    font-weight: 600;
    margin-top: 1.25em;
    margin-bottom: 0.6em;
}

footer{
    width: 920px;
    margin: 20px auto;
    padding: 20px;
    background: #2ea6c3;
    color: #fff;
    font-size: 10px;
    text-align: center;
}


    


@media screen and (max-width:960px)
{
    header { width: 96%; padding: 2%; }
    nav { width: 96%; padding: 0 2% 20px 2%; }
    main { width: 100%; }
    section { width: 98%; padding: 1%; }
    section article img { width: 100%; }
    aside { width: 96%; margin: 2%; }  
    footer { width: 90%; padding: 5%; }
}