nav {
    position: fixed;
    width: 100%;
    height: 5vh;
    z-index: 10;
}

h1 {
    font-size: 3vh;
}

.espaco_img {
    display: inline-block;
    border: rgba(222, 220, 209,  1) solid 1px;
    height: 2vh;
    width: 2vh;
}

.navigation_A {
    position: absolute;
    display: inline-block;
    height: 5vh;
    padding-top: 1vh;
    padding-bottom: 1vh;
    border: rgba(222, 220, 209,  0.5) solid 1px;
    border-radius: 10px;
}

.navigation_B {
    display: inline-block;
    position: absolute;
    right: 0;
    top: 0;
    height: 5vh;
    padding-top: 0.5vh;
    border: rgba(222, 220, 209,  0.5) solid 1px;
    border-radius: 10px;
}

.navigation_C {
    display: inline-block;
    border: rgba(222, 220, 209,  0.5) solid 1px;
    border-radius: 10px;
    font-size: 2vh;
    height: 4vh;
    padding-top: 0.5vh;
    padding-right: 1.5vh;
    padding-left: 1.5vh;
}