html {
    box-sizing: border-box;
    font-family: 'Lato', sans-serif;
    font-size: 16px;
    scroll-behavior: smooth;
}

*, *:before, *:after {
    box-sizing: inherit;
}

body, h1, h2, h3, h4, h5, h6, p, ol, ul {
    margin: 0;
    padding: 0;
    font-weight: normal;
}


img {
    max-width: 100%;
}

a {
    color: royalblue;
    text-decoration: none;
}



a:hover {
    opacity: .7;
}

.ul-materiais li{
    padding: 10px 0 0 0;
}

.body_escuro{
    background: #444654;
}

.body_normal h1,
.body_normal p,
.body_normal h2,
.body_normal h3,
.body_normal li {
  color: black;
}

.body_escuro h1,
.body_escuro p,
.body_escuro h2,
.body_escuro h3,
.body_escuro li {
  color: white;
}

.body_escuro section{
    padding: 25px;
	border-color: white;
	border-style: solid;
	border-width: 1px;
	border-radius: 8px;
	box-shadow: rgba(149, 157, 165, 0.5) 0px 8px 24px;

	margin-bottom: 1.5rem;
}

.subir {
    background-color: white;
    position: fixed;
    bottom: 0px;
    right: 0px;
    margin: 20px;
    padding: 10px;

    border-width: 1px;
    border-radius: 8px;
    box-shadow: rgba(149, 157, 165, 0.5) 0px 8px 24px;
}

.costumizar {
    background-color: white;
    position: fixed;
    bottom: 0px;
    left: 0px;
    margin: 20px;
    padding: 10px;

    border-width: 1px;
    border-radius: 8px;
    box-shadow: rgba(149, 157, 165, 0.5) 0px 8px 24px;
}

.costumizar:hover {
    cursor: pointer;
}

.escolhas {
    background-color: white;
    position: fixed;
    bottom: 7%;
    left: -50%;
    margin: 20px;
    padding: 10px;

    border-width: 1px;
    border-radius: 8px;
    box-shadow: rgba(149, 157, 165, 0.5) 0px 8px 24px;
}

.escolhas_animacao_ir {
    background-color: white;
    position: fixed;
    bottom: 7%;
    left: 0%;
    margin: 20px;
    padding: 10px;

    border-width: 1px;
    border-radius: 8px;
    box-shadow: rgba(149, 157, 165, 0.5) 0px 8px 24px;
    animation: go 1s;
}

.escolhas_animacao_voltar {
    background-color: white;
    position: fixed;
    bottom: 7%;
    left: -50%;
    margin: 20px;
    padding: 10px;

    border-width: 1px;
    border-radius: 8px;
    box-shadow: rgba(149, 157, 165, 0.5) 0px 8px 24px;
    animation: go-back 1s;
}

.mostrar_atividade {
    background-color: white;
    position: fixed;
    bottom: 7%;
    right: -150%;
    margin: 20px;
    padding: 10px;

    border-width: 1px;
    border-radius: 8px;
    box-shadow: rgba(149, 157, 165, 0.5) 0px 8px 24px;
}

.mostrar_atividade_vir {
    background-color: white;
    position: fixed;
    bottom: 7%;
    right: 0%;
    margin: 20px;
    padding: 10px;

    border-width: 1px;
    border-radius: 8px;
    box-shadow: rgba(149, 157, 165, 0.5) 0px 8px 24px;
    animation: vir 1s;
}

.mostrar_atividade_voltar {
    background-color: white;
    position: fixed;
    bottom: 7%;
    right: -150%;
    margin: 20px;
    padding: 10px;

    border-width: 1px;
    border-radius: 8px;
    box-shadow: rgba(149, 157, 165, 0.5) 0px 8px 24px;
    animation: voltar 1s;
}

.escolhas_escolher {
    background-color: white;
    position: fixed;
    bottom: 7%;
    left: 0%;
    margin: 20px;
    padding: 10px;

    border-width: 1px;
    border-radius: 8px;
    box-shadow: rgba(149, 157, 165, 0.5) 0px 8px 24px;
}

.select {
    width: 100%;
    height: 35px;
}

#download {
    display: flex;
    justify-content: space-between;
    width: 100%;
}

.button {
    padding: 10px 25px;
    display: inline-block;
    font-size: 20px;
    cursor: pointer;
    text-align: center;	
    text-decoration: none;
    outline: none;
    color: #fff;
    background-color: rgba(149, 157, 165);
    border: none;
    border-radius: 15px;
    box-shadow: 0 9px #999;
  }
  
  .button:hover {background-color: #3e8e41}
  
  .button:active {
    background-color: #3e8e41;
    box-shadow: 0 5px #666;
    transform: translateY(4px);
  }

hr.style-six {
    padding: 0;
    border: none;
    height: 1px;
    background-image: -webkit-linear-gradient(left, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0));
    background-image: -moz-linear-gradient(left, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0));
    background-image: -ms-linear-gradient(left, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0));
    background-image: -o-linear-gradient(left, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0));
    color: #333;
    text-align: center;
}

hr.style-six:after {
    content: " ";
    display: inline-block;
    position: relative;
    top: -2.1em;
    font-size: 1.5em;
    padding: 19px 1.75em;
    background: #fff url(image/cartoon_1.png) no-repeat scroll center;
    background-size: 90px 90px;
    height: 50px;
}

hr.style-three {
    height: 30px;
    border-style: solid;
    border-color: black;
    border-width: 1px 0 0 0;
    border-radius: 20px;
}

hr.style-three:before {
    display: block;
    content: "";
    height: 30px;
    margin-top: -31px;
    border-style: solid;
    border-color: black;
    border-width: 0 0 1px 0;
    border-radius: 20px;
}

@keyframes vir {
    0% {
        right: -150%;
    }

    100% {
        right: 0%;
    }
}

@keyframes voltar {
    0% {
        right: 0%;
    }

    100% {
        right: -150%;
    }
}

@keyframes go {
    0% {
        left: -50%;
    }

    100% {
        left: 0%;
    }
}

@keyframes go-back {
    0% {
        left: 0%;
    }

    100% {
        left: -50%;
    }
}

@media screen and (max-width: 768px){
    .escolhas {
        bottom: 15%;
    }

    .escolhas_escolher {
        bottom: 15%;
    }

    .escolhas_animacao_ir {
        bottom: 15%;
    }

    .escolhas_animacao_voltar {
        bottom: 15%;
    }
    
    section {
       overflow: hidden;
    }

    .button{
        height: 20px;
        padding: 0 10px 10px 10px;
        font-size: 10px;
    }
    

}