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

img {
    display: block;
}

body {
    width: 100%;
    height: 100vh;

}

.projeheader {
    width: 100%;
    height: 80px;
    box-shadow: 0 0 10px black;
    align-content: center;
    background-color: white;
}

.projeheader ul {
    display: flex;
    justify-content: center;
    list-style-type: none;
}

.projeheader>ul>li a {
    text-decoration: none;
    color: black;
    cursor: pointer;
    padding: 15px 25px;
    box-shadow: 0 0 5px rgba(0, 0, 0, .3);
    border-radius: 15px;
}

section {
    width: 100%;
    height: calc(100vh - 80px);
    box-shadow: 10px 0 10px rgba(0, 0, 0, 0.3),
        -10px 0 10px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    background-color: #e0dcdc;
}