html, body {
    margin: 0;
}
body{
    background-color: #E6EBEF;
}

header {
    background-color: #29384A;
    color: white;
    height: 80px;
    width: 100%;
    position: fixed;
    z-index: 10;
}
#logo{
    width: 80px;
    position: absolute;
    top: 5px;
    margin-left: 5%;
}
#menu{
    float: right;
    margin: 0px 5% 0px 0px;
    list-style: none;
}
.item_menu {
    float: left;
    padding: 35px 30px 25px 30px;
}
.item_menu:hover{
    background-color: #6e97f5;
}
.link_menu {
    text-decoration: none;
    color: white;
    font-family: 'Courgette', cursive;
}

#imagem_fundo {
    background: url("imagens/img_2.jpg");
    height: 100%;
    text-align: center;
    background-size: cover;
    background-position: center;
    clear: both;
}
#titulo {
    color: 	rgb(6, 99, 146);
    padding-top: 7%;
    font-family: 'Pacifico', cursive;
    font-size: 300%;
}
#subtitulo {
    color: 	rgb(6, 99, 146);
    padding-top: 1%;
    padding-right: 10%;
    padding-left: 10%;
    padding-bottom: 3%;
    font-size: 150%;
    font-family: 'Courgette', cursive;
}
#botao {
    color: 	rgb(6, 99, 146);
    border: 1px rgb(45, 144, 184) solid;
    padding: 1% 2%;
    text-decoration: none;
    border-radius: 10%;
}
#botao:hover{
    background-color: rgb(201, 211, 211);
    color: white; 
}
p {
    font-family: 'Merienda', cursive;
}
section {
    padding: 20px;
    float: left;
}

#Sobre {
    text-align: center;
    padding: 20px;
}
.coluna{
    float: left;
    padding: 0 5%;
    position: relative;
    width: 40%;
}
#video {
    padding-top: 50%;
}

#Perigos {
    padding: 20px, 0px;
    text-align: center;
    background-color: #C1CCD7;
}
.img_perigo {
    width: 90%;
    height: 30%;
}
.coluna_tres{
    float: left;
    padding: 0 2%;
    position: relative;
    width: 29%;
}

#Atitudes {
    padding: 20px, 0px;
    text-align: center;
}
.coluna_quatro {
    float: left;
    padding: 0 5%;
    position: relative;
    width: 15%;
}

#Curiosidades {
    padding: 20px, 0px;
    text-align: center;
    background-color: #C1CCD7;
}
#img_curiosidade {
    width: 100%;
}

#Autora {
    padding: 20px, 0px;
    text-align: center;
}
#minha_foto {
    width: 90%;
}

footer{
    background-color: #6e97f5;
    float: left;
    width: 100%;
    text-align: center;
}
 
@media all and (max-width: 760px){
    #menu{
        visibility: hidden;
    }
    .coluna, .coluna_quatro, .coluna_tres{
        display: block;
        width: 80%;
        padding: 0;
        margin: 10px;
        float: none;
    }
}