@media screen and (max-width: 600px){
   * {
    padding: 0px;
    margin: 0px;
    box-sizing: border-box;
}
    html,body{
    width: 100%;
    height: 100%;
    background-color: #94cbff;
}
    header h1{
    background-image: url("imatges_Ex15/header2.jpg");
    font-family: 'Montserrat', sans-serif;
    color: blue;
    font-size: 75%;
    text-align: center;
    background-size: 100%;
    background-repeat: no-repeat;
    padding: 5%;
}
    section{
    border: 1px solid black;
    background-color: #42c7a8;
    position: relative;
    max-width: 90%;
    margin: auto;
    padding-top: 10px;
    border-radius: 10px;
}
    img{
    border-radius: 5px;
    display: block;
    margin: auto;
    max-width: 50%;
}
    p{
    text-align: justify;
    position: relative;
    padding-left: 10px;
    padding-right: 10px;
} 
}

* {
    padding: 0px;
    margin: 0px;
    box-sizing: border-box;
}
html,body{
    width: 100%;
    height: 100%;
    background-color: #94cbff;
}
header h1{
    background-image: url("imatges_Ex15/header2.jpg");
    font-family: 'Montserrat', sans-serif;
    color: blue;
    text-align: center;
    background-size: 100%;
    background-repeat: no-repeat;
    padding-bottom: 5%;
}
section{
    border: 1px solid black;
    background-color: #42c7a8;
    position: relative;
    width: 550px;
    margin: auto;
    padding-top: 10px;
    border-radius: 10px;
}
img{
    border-radius: 5px;
    display: block;
    margin: auto;
    max-width: 90%;
}
p{
    text-align: justify;
    position: relative;
    padding-left: 10px;
    padding-right: 10px;
}