*{
    margin: 0;
    padding: 0;
    font-family: 'Open Sans', sans-serif;
}

body {
    background-color: #ffffff;
    margin: 0 auto;
    font-size: 16px;
}

header{ 
    background-color: #45454e;
    width: 100%;
    height: 200px;
    margin-top: 0px;
}

.principal{
    display: block;
    margin-left: auto;
    margin-right: auto;
    padding: 30px;
}

nav{
    width: 100%;
    margin-bottom: 60px;
    margin-top: 10px;
}

nav ul{
    list-style: none;
    text-align: center;
}

nav ul li{ 
    display: inline-block;
    text-align: center;
    font-weight: 700;
}

nav ul li a{
    color: #45454e;
    margin: auto; 
    margin: 27px;
    padding: 5px;
    text-decoration: none;
}

nav ul li a:hover{
    color: #e8757f;
}

.fijo{
    color: #e8757f;
}

.portada{
    height: 300px;
    width: 300px;
    margin-left: 5%;
}

.caja{
    width: 100%;
    max-width: 530px;
    margin: auto;
    margin-top: 50px;
    margin-bottom: 100px;
}

main{
    float: left;
    max-width: 200px;
    margin-bottom: 50px;
}

.bloque1{
    display: block;
    float: left;
    background-color: #e8757f;
    margin-bottom: 5px;
    width: 100%;
    max-width: 250px;
    padding: 10px;
}

.bloque1  p{
    color: #45454e;
    font-weight: 700;
    font-size: 15px; 
    text-align: center;
}

.bloque2 ul{
    list-style: none;
    display: block;
    float: left;
    margin-bottom: 5px;
    width: 100%;
    max-width: 260px;
    max-height: 200px;
    padding: 10px;
    padding-bottom: 50;
}

.bloque2 ul li{
    color: #45454e;
    line-height: 16px;
    font-weight: 300;
    font-size: 12px; 
    text-align: center;
}

footer{ 
    position: relative;
    background-color: #45454e;
    clear: both;
    width: auto;
    height: 110px;
}

footer p{
    color: #b5b5b5;
    padding: 20px;
    max-width: 530px;
    text-align: center; 
    font-size: 12px;
    margin: auto;   
}

.propuesta{
    width: 100%;
    max-width: 100;
    margin: auto;
    margin-bottom: 0px;
}