html{
    font-size: 16px;
}
/*header*/
header{
    background-color: rgba(0, 0, 0, 0.8);
    position: fixed;
    top: 0;
    width: 100vw;
    font-family: 'Satisfy', cursive;
    font-size: 1.5rem;
    color: #fff;
    padding: 1rem 1rem;
    z-index: 9999;
}

/*footer*/
footer{
    background-color: #000;
    padding: 4rem 0;
    margin-top: 3rem;
}
.footer_fix{
    color: #fff;
}
.footer_fix dt{
    font-family: 'Barlow', sans-serif;
    font-size: 2rem;
    font-weight: normal;
    color: #fff;
}
.footer_fix h3{
    font-family: 'Barlow', sans-serif;
    font-size: 2rem;
    font-weight: normal;
}
.square{
    width: 13%;
    height: 2px;
    border: 1px solid #B6DFEA;
    margin: 0.8rem 0 2rem 0;
}
.footer_fix dd{
    font-family: Consolas;
    font-size: 1rem;
    color: #959191;
    border-bottom: 1px dotted #959191;
    width: 90%;
}
.footer_fix i{
    padding-right: 1rem;
}
.footer_fix h2{
    text-align: center;
    font-size: 2.3rem;
    margin-top: 5rem;
    font-family: Consolas;
    letter-spacing: 1rem;
}
.footer_fix p{
    text-align: center;
    font-family: Consolas;
    color: #959191;
    font-size: 1.3rem;
    letter-spacing: 0.5rem;
    margin: 2rem 0;
}
.sns{
    text-align: center;
    font-size: 2.5rem;
    color: #959191;
}
.promotion{
    width: 43%;
    display: inline;
    margin-right: 2rem;
}

/*main*/
.main_title{
    width: 65%;
    margin: 0 auto;
    padding-top: 7rem;
}
.main_title h2{
    font-family: 'Satisfy', cursive;
    font-size: 4rem;
    text-align: center;
}
.main_title p{
    font-family: Consolas;
    color: #4C4A4A;
    font-size: 1.0rem;
    text-align: center;
}
.main_i{
    color: #B6DFEA;
    font-size: 3.7rem;
    width: 6%;
    margin: 0 auto;
}
.course{
    position: relative;
    margin-top: 3rem;
}
.course h2{
    color: #fff;
    font-size: 20vw;
    position: absolute;
    bottom: 0;
    right: 0;
    font-family: 'Satisfy', cursive;
}
.silver{
    background-color: rgba(0, 0, 0, 0.7);
}
.course img{
    opacity: 0.5;
}
.course h3{
    position: absolute;
    width: 100%;
    text-align: center;
    font-family: Consolas;
    color: #FFF;
    padding: 1% 0;
    font-size: 2rem;
}
.course span{
    font-size: 3rem;
}
.silver h3{
    background-color: rgba(182, 223, 234, 0.9);
    opacity: 1;
    z-index: 5;
}
.table dt{
    color: #4C4A4A;
    font-family: Consolas;
    font-size: 1.2rem;
    padding: 0.5rem 1rem;
    background-color: rgba(182, 223, 234, 0.7);
}
.table dd{
    color: #4C4A4A;
    font-family: Consolas;
    font-size: 0.9rem;
    padding:  1rem;
    background-color: #F5F5F5;
}