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

.error
{
    min-height: 100vh;
    background: linear-gradient(0deg, #fff, #03a9f4);
}

.sky 
{
    position: relative;
    widows: 100%;
    height: 60vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.sky h2 
{
    font-size: 16em;
    color: #fff;
    text-shadow: 15px 15px 0 rgba(0, 0, 0, .1);
}

.sky h2 span 
{
    display: inline-block;
    animation: animate 2s ease-in-out infinite;
}

.sky h2 span:nth-child(even)
{
    animation-delay: 1s;
}

@keyframes animate 
{
    0%, 100%
    {
        transform: translateY(-50px);
    }

    50%
    {
        transform: translateY(50px);
    }
}

.field
{
    padding: 100px;
    height: 40vh;
    background: #6e2308;
    box-shadow: inset 0 20px 10px #51680c;
    text-align: center;
}

.field h2 
{
    color: #fff;
    font-size: 2em;
    margin-bottom: 20px;
}

.field a
{
    background: #fff;
    color: #000;
    width: 160px;
    height: 50px;
    line-height: 50px;
    border-radius: 50px;
    display: inline-block;
    text-decoration: none;
    font-size: 20px;
}

.plane 
{
    position: absolute;
    bottom: 150px;
    left: 100px;
    max-width: 400px;
    background: transparent;
}

.grass 
{
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 20px;
    background: url(../images/green_soccer.jpg);
    background-position: bottom;
    animation: animateGrass 0.2s linear infinite;
}

@keyframes animateGrass {
    0%
    {
        background-position: 0 0;
    }
    100%
    {
        background-position: -94px 0;
    }
}