@import url('https://fonts.googleapis.com/css?family=Noto+Sans+JP|Open+Sans&display=swap');
body {
    font-family: 'Noto Sans JP', sans-serif;
}

.navi {
    background-color: #424242;
    border-radius: 2px;
    box-shadow: 0 2px 2px 2px rgba(0, 0, 0, 0.4);
    color: #FFFFFF;
    display: block;
    overflow: hidden;
    width: 100%;
}

.navi ul {
    margin: 0;
}

.navi ul li {
    display: inline-block;
    list-style-type: none;
    -webkit-transition: all 0.2s;
    transition: all 0.2s;
}

.navi>ul>li>a>.caret {
    border-top: 4px solid #FFFFFF;
    border-right: 4px solid transparent;
    border-left: 4px solid transparent;
    content: '';
    display: inline-block;
    height: 0;
    width: 0;
    vertical-align: middle;
    -webkit-transition: color 0.1s linear;
    transition: color 0.1s linear;
}

.navi>ul>li>a {
    color: #FFFFFF;
    display: block;
    line-height: 56px;
    padding: 0 10px;
    text-decoration: none;
}

.navi>ul>li:hover {
    background-color: rgb(218, 60, 65);
}

.navi>ul>li:hover>a {
    color: rgb( 255, 255, 255);
}

.navi>ul>li:hover>a>.caret {
    border-top-color: rgb( 255, 255, 255);
}

.navi>ul>li>div {
    background-color: rgb(218, 60, 65);
    border-top: 0;
    border-radius: 0 0 4px 4px;
    box-shadow: 0 2px 2px -1px rgba(0, 0, 0, 0.055);
    display: none;
    margin: 0;
    opacity: 0;
    position: absolute;
    width: 165px;
    visibility: hidden;
    -webkit-transiton: opacity 0.2s;
    transition: opacity 0.2s;
}

.navi>ul>li:hover>div {
    display: block;
    opacity: 1;
    visibility: visible;
}

.navi>ul>li>div ul>li {
    display: block;
}

.navi>ul>li>div ul>li>a {
    color: #ffffff;
    display: block;
    padding: 12px 24px;
    text-decoration: none;
}

.navi>ul>li>div ul>li:hover>a {
    background-color: rgba( 255, 255, 255, 0.1);
}

.container-fluid {
    padding: 0;
    margin: 0;
}

.main-area {
    position: relative;
    display: block;
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100vh;
    background-image: url(../image/SummerWorkShop2018-top.jpeg );
    background-size: cover;
}

.col-sm-12 {
    padding: 0;
    margin: 0;
}

.main-area::after {
    content: "";
    display: block;
    position: absolute;
    z-index: 1;
    width: 100%;
    height: 100%;
    background: #000;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    opacity: 0.3;
}

.main-area {
    text-align: center;
}

.title {
    position: relative;
    display: block;
    height: auto;
}

.title h1 {
    position: relative;
    display: block;
    padding: 36px 0px 24px 0px;
    font-size: 64px;
    color: #FFBF00;
    text-shadow: 0px 3px 3px rgba(0, 0, 0, 0.4)
}

.title p {
    position: relative;
    display: block;
    font-size: 36px;
    color: #fff;
    text-shadow: 0px 3px 3px rgba(0, 0, 0, 0.4);
}

.registration {
    position: relative;
    display: block;
    padding: 24px 0px;
    height: auto;
}

.regist-part {
    position: relative;
    display: block;
    margin: 16px 0px;
}

.regist-part button {
    padding: 8px 24px;
    width: 640px;
    position: relative;
    font-size: 64px;
    color: #424242;
    background-color: #FACC2E;
    border: solid #424242;
    border-radius: 10px;
    -moz-border-radius: 10px;
    -webkit-border-radius: 10px;
    cursor: pointer;
}

.registration p {
    position: relative;
    display: block;
    margin: 0;
    padding: 0;
}

.regist-part button:hover {
    box-shadow: 0px 4px 4px 2px rgba(0, 0, 0, 0.4);
    background-color: #FFF176;
}

.title,
.registration {
    position: relative;
    display: block;
    z-index: 3;
}

.deadline-area {
    position: relative;
    display: block;
    padding: 32px;
}

.deadline {
    position: relative;
    color: #fff;
    text-shadow: 0px 2px 2px rgba(0, 0, 0, 0.4);
    font-size: 24px;
}

.footer {
    text-align: center;
}

.guide {
    padding: 10px 0px 0px;
    background-color: #424242;
    border-radius: 2px;
    box-shadow: 0 2px 2px 2px rgba(0, 0, 0, 0.4);
    color: #FFFFFF;
    display: inline-block;
    overflow: hidden;
    width: 100%;
}

@media screen and (max-width:768px) {
    .title h1 {
        position: relative;
        display: block;
        padding: 16px 0px 8px 0px;
        font-size: 2em;
        color: #FFBF00;
        text-shadow: 0px 3px 3px rgba(0, 0, 0, 0.4)
    }
    .title p {
        position: relative;
        display: block;
        font-size: 1em;
        color: #fff;
        text-shadow: 0px 3px 3px rgba(0, 0, 0, 0.4);
    }
    .registration {
        padding: 4px;
    }
    .registration button {
        padding: 8px 24px;
        width: 75%;
        position: relative;
        display: block;
        margin: auto;
        font-size: 2em;
        color: #424242;
        background-color: #FACC2E;
        border: solid #424242;
        border-radius: 10px;
        cursor: pointer;
    }
    .registration button:hover {
        box-shadow: 0px 4px 4px 2px rgba(0, 0, 0, 0.4);
        background-color: #FFF176;
    }
    .deadline {
        position: relative;
        display: block;
        color: #fff;
        text-shadow: 0px 2px 2px rgba(0, 0, 0, 0.4);
        font-size: 1em;
    }
    .guide {
        font-size: 10px;
    }
}