.all-contents {
    display: flex;
    justify-content: center;
    flex-direction: column;
    width: 100%;
}

.main-part {
    width: 100%;
    display: flex; 
    justify-content: center;
    align-items: center; 
    flex-direction: column;
    margin-bottom: 1rem;
}

.title {
    width: 100%;
    max-width: 900px;
    margin: 0 0 1rem 0;
}

@media (max-width: 500px) {
    .none-sm {
        display: none;
    }
}

@media (min-width: 499px) {
    .none-lg {
        display: none;
    }
}

.date {
    width: 100%;
    max-width: 500px;
}

.free {
    width: 100%;
    background-color: rgb(61, 61, 61);
    display: flex;
    justify-content: center;
    font-size: 2rem;
    color: rgb(241, 255, 49);
    font-weight: bold;
    padding: 0.5rem;
    margin-top: 1rem;
}

.date-place {
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-image: url(./img/zao_okama_blur.jpg);
    background-size: cover;
    background-position: 0;
    padding: 1rem 0.5rem 1rem 0.5rem;
}

.icon {
    width: 1.5rem;
    height: 1.5rem;
    margin-right: 0.5rem;
}

h2 {
    display: inline;
    margin: 0 0 0 0;
}

.title-with-icon {
    display: flex;
    align-items: start;
}

.details-outer {
    margin: 1rem 0 0 0;
    padding: 0.3rem 0.5rem 0.2rem 0.5rem;
    border-radius: 0.5rem;
}

.details-inner {
    margin: 0 0 0.2rem 0;
    padding: 0.5rem 0.5rem 0.5rem 0.5rem;
    border-radius: 0.5rem;
    background-color: white;
}

.profile {
    background-color: rgb(224, 224, 224);
    margin: 0.5rem 0.5rem 0.5rem 0.5rem;
    padding: 0.2rem 0.5rem 0.2rem 0.5rem;
}

.name {
    font-size: 1.5rem;
}


/* 火山防災の日 */
.about {
    display: flex;
    align-items: end;
    justify-content: left;
}

.center {
    text-align: center;
}

#volcano {
    display: block;
    width: 4rem;
}

.about-title {
    font-size: 1.5rem;
    /* color: rgb(126, 67, 0); */
    font-weight: 600;
}

#explanation {
    margin-top: 0;
    padding: 0.5rem;
    border: solid;
    border-color: green;
    border-width: 2px;
    border-radius: 10px;
}

.special-site-link {
    font-size: 1rem;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    padding-right: 1rem;
    padding-left: 1rem;
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
    border: 0;
    border-radius: 0.5rem;
    background-color: rgb(165, 97, 42);
    color: white;
    font: var(--my-font);

    transition: .2s;
}
.special-site-link:hover {
    background-color: rgb(70, 31, 0);
    transform: scale(1.05);
    cursor: pointer;
    font-weight: bold;
}