* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    width: 100%;
    overflow-x: hidden;
}

body {
    font-size: 15px; 
    font-family:'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
    line-height: 44px;   
    background-color: rgb(255, 244, 230);
}

#book-1{
    display: grid;
    grid-template-rows: repeat(2, 1fr);
}

header {
    width: 100%;
    background-color: rgb(73, 31, 18);
    position: fixed;
    z-index: 999;
}   

nav  {
    display: grid;  
    grid-template-columns: repeat(4, 1fr);
    justify-items: center;
}

header nav a {
    text-decoration: none;
    color:hwb(0 0% 100%);
    font-size: 0.75rem;
    text-align: center;
    font-family:'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    display: inline-block;
    background-color: rgb(255, 244, 230);
    padding: 0.05rem 1rem;
    margin-top: 0.50rem;
    justify-content: end;
}

header nav a:hover {
    scale: 1.1;
}
a:link {
    transition: scale 0.3s;
}

#brainstorm {
margin-top: 65px;
margin-left: 1rem;
margin-right:1rem;
margin-bottom: 1rem;
background-color: rgb(245, 229, 209);
box-shadow:  2px 4px 10px rgb(185, 168, 148);
padding: 0.5rem;
}

#activities {
margin-left: 1rem;
margin-right:1rem;
margin-bottom: 1rem;
background-color: rgb(245, 229, 209);
box-shadow:  2px 4px 10px rgb(185, 168, 148);
padding: 0.5rem;
}

#logo {
    height: 5vh;
}

#intro {
    height: 40vh;
}

img {
    height: 30vh;
}