body,html{
    font-family : sans-serif;
    margin: 0; 
    padding: 0;
    height: 100vh; 
}

ul {
    list-style:none;
}

.background-container{
    width: 100vw;
    height: 100vh;
    background: linear-gradient(#00556B 0vh, #FFF 50vh);
}

.orange-circle{
    width: 100vw;
    height: 40vh;
    background: radial-gradient(ellipse 50% 50% at 50% 50%, rgba(245, 143, 0, 0.4), rgba(255, 255, 255, 0));
    z-index: 2;
    margin-top: 25vh;
}

header{
    width: 100vw;
    height: 60px;
    margin: 0;
    display: flex;
    align-items: center;
}

header #title{
    font-weight: 1000;
    font-size: 20px;
}

#contents-continer{
    width: 100vw;
}

#contents-continer #catchcopy{
    font-weight: 1000;     
    font-size: 20px; 
}