html,
body {
    background-color: #0a1c34;
    background-image: url("images/background.jpg");
    width: 100%;
    height: 100%;
    background-size: cover;
    margin: 0;
}

.menu-item-container>img {
    width: 100%;
    animation: fadeIn 1s;
    -webkit-animation: fadeIn 1s;
    -moz-animation: fadeIn 1s;
    -o-animation: fadeIn 1s;
    -ms-animation: fadeIn 1s;
}

.logo-container {
    display: flex;
    justify-content: center;
    padding-top: 3vh;
}

.logo-img {
    height: 15vh;
}

.available-options {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    padding-top: 7vh;
}

.menu-button {
    flex: 1 0 25%;
    margin: 0.5vh;
    height: 14vh;
}

.menu-button img {
    display: block;
    margin: auto;
    max-width: 100%;
    max-height: 100%;
}

.social-networks-container {
    display: flex;
    justify-content: center;
    position: absolute;
    height: 11vh;
    left: 30vw;
    right: 30vw;
}

.social-networks {
    margin-bottom: 1vh;
    display: flex;
    position: fixed;
    justify-content: center;
    bottom: 0;
}

.social-networks-button {
    max-width: 12vw;
    margin-left: 40px;
    margin-right: 40px;
}

.fade-in-image {
    animation: fadeIn 1s;
    -webkit-animation: fadeIn 1s;
    -moz-animation: fadeIn 1s;
    -o-animation: fadeIn 1s;
    -ms-animation: fadeIn 1s;
}

@keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

@-moz-keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

@-webkit-keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

@-o-keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

@-ms-keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}