html{
    font-family: sans-serif;
}
.title{
    background-color: black;
    text-align: left;
    font-size: 1.5em;
    margin: 0;
    padding-top: 5px;
    padding-bottom: 5px;
    padding-left: 20px;
}
.title a:link{
    text-decoration: none;
    color: white;
}
.title a:hover{
    text-decoration: none;
    color: white;
}
.title a:visited{
    text-decoration: none;
    color: white;
}
.title a:active{
    text-decoration: none;
    color: white;
}
.menu{
    list-style-type: none;
    font-size: 1rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
}
.menu a:link{
    font-size: 1rem;
    text-decoration: none;
    display: flex;
    gap: 1rem;
    justify-content: center;
}
.top{
    background-color: rgb(240,240,240);
    margin-top: 10px;
    padding-top: 10px;
    margin-bottom: 10px;
    padding-bottom: 10px;
}
.notice{
    text-align: center;
}
.f0{
    justify-content: center;
    gap:5px;
    margin: 10px;
    text-align: center;
    margin: 10px;
    text-align: center;
    display: flex;
}
select .box1{
    justify-content: center;
    gap:1px;
    margin: 10px;
    text-align: center;
    text-align: center;
    width: 140px;
    height: 30px;
    color: black;
    background-color: white;
    gap: 100px;
    display: flex;
}
select .box2{
    justify-content: center;
    gap:1px;
    margin: 10px;
    text-align: center;
    text-align: center;
    width: 140px;
    height: 30px;
    color: black;
    background-color: white;
    gap: 100px;
    display: flex;
}
select .box3{
    justify-content: center;
    gap:1px;
    margin: 10px;
    text-align: center;
    text-align: center;
    width: 140px;
    height: 30px;
    color: black;
    background-color: white;
    gap: 100px;
    display: flex;
}
select .box4{
    justify-content: center;
    gap:1px;
    margin: 10px;
    text-align: center;
    text-align: center;
    width: 140px;
    height: 30px;
    color: black;
    background-color: white;
    gap: 100px;
    display: flex;
}
.select{
    justify-content: center;
    display: flex;
}
.datetime{
    justify-content: center;
    display: flex;
    gap:5px;
}
input{
    color: black;
    background-color: white;
}
.reload{
    text-align: center;
    margin: 10px;
    font-size: 20px;
}
.bbs_name{
    text-align: center;
    font-size: 1.3em;
    margin: 10px;
}
.date{
    font-size: 1.3em;
    text-align: center;
    display: flex;
    gap: 1rem;
}
.date{
    justify-content: center;
    display: flex;
}
.button{
text-align: center;
box-sizing: border-box;
display: block;
background: #447fff;
color: #fff;
font-weight: bold;
font-size: 20px;
padding: 1px;
line-height: 1;
text-shadow: 1px 1px rgba(0,0,0,0.4);
max-width: 70px;
width: 100%;
margin: 0 auto;
position: relative;
top: 0;
&::before, &::after {
    content: '';
    box-sizing: border-box;
    border: 14px solid transparent;
    width: 28px;
    height: 28px;
    display: block;
    position: absolute;
    top: 0;
    }
    &::before {
        border-top-color: #447fff;
        border-bottom-color: #447fff;
        left: -14px;
    }
    &::after {
        border-left-color: #447fff;
        right: -28px;
    }
}
.date a:link{
    text-decoration: none;
    color: black;
}
.date a:visited{
    text-decoration: none;
    color: black;
}
.date a:hover{
    text-decoration: none;
    color: black;
}
.date a:active{
    text-decoration: none;
    color: black;
}
.content{
    margin-top: 20px;
    margin-right: 30px;
    margin-bottom: 20px;
    margin-left: 30px;
}
.guide{
    display: flex;
    padding: 10px;
    margin-bottom: 10px;

    gap: 30px;
    height: 35rem
}
.photo{
    width: 15rem;
    height: 15rem;
}
.threads{
    line-height: 1.6;
    margin-top: 0px;
    margin-bottom: 0px;
    padding-top: 10px;
    padding-left: 5px;
    padding-right: 5px;
    padding-bottom: 10px;
}
.thread a:link {
    color: blue;
    text-decoration: none;
}
.thread a:hover {
    color: blue;
    text-decoration: underline;
}
.thread a:visited {
    color: purple;
    text-decoration: none;
}
.thread a:active {
    color: red;
    text-decoration: underline;
}