html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
}

.sen1 { top: 0px; }

.sen1, .middle, .idanime2, .idanime1,.input-text, .input-text2, .s {
    border: solid 2px #000;
    box-sizing: border-box;
    position: absolute;
    width: 100%;
}

.middle {
    height: 462px;
    top: 96px;
}

.ascii-banner {
    position: absolute;
    top: 91px;
    font-size: 50px;
    left: 50%;
    transform: translateX(-50%);
    overflow:auto;
    white-space: pre;
    font-family: "Saitamaar";
  }

.idanime1 {
    top: 556px;
}

.menu {
    position: absolute;
}

.menu, .banner {
    top: 654px; 
}

.menu, .banner, .main-banner, .banner2 {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #0000FF;
    text-align: center;
    height: 94px;
}

.main-banner, .banner2 {
    position: fixed;
    bottom: 2px;
    z-index: 10;
  }

.sen2 { top: 556px; }

.sen1, .sen2 {
    background-color: #ffffff;
    height: 98px;
}

.idanime2 {
    top: 1324px;
}

.idanime2,.idanime1 {
    color: #0000FF;
    height: 98px;
    font-size: 60px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.idanime2 p {
    animation: ida 20s linear infinite;
    transform: translateX(calc(-8% + 100vw));
    white-space: nowrap;
}

.idanime1 p {
    animation: ida 40s linear infinite;
    transform: translateX(calc(-8% + 100vw));
    white-space: nowrap; /* 消しちゃ駄目だよ */
}

@keyframes ida  { 
    100% { 
        transform: translateX(-100%); 
    } 
}

.s {
    top: 1420px; 
    font-size: 40px;
    height: 98px;
    display: flex;
    align-items: center;
    position: absolute;
  }

.copy, .copy1, .copy2, .copy3, .copy4, .copy5, .copy6, .copy7, .copy8, .copy9, .copy10 {
    font-size: 40px;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    border: solid 2px #000;
    height: 94px;
}

.copy:hover, .copy1:hover, .copy2:hover, .copy3:hover, .copy4:hover, .copy5:hover, .copy6:hover, .copy7:hover, .copy8:hover, .copy9:hover, .copy10:hover {
    background: #00005e;
}

.input-text, .input-text2 {
    position: fixed;
    font-size: 68px;
    color: #000;
    background-color: #fff;
    outline: none;
}

  .input-text {
    height: auto;
    bottom: 96px;
    line-height: 94px;
    z-index: 20;
  }
  
  .input-text2 {
    bottom: 192px;
    height: 98px;
    z-index: 20;
  }

#chat-box {
    width: 100%;
    position: absolute;
    top: 1517px;
}

.message-box {
    border: solid 2px #000;
    max-width: 100vw;
}

.message-box + .message-box {
    border-top: 0;
}

.header {
    display: flex;
    background-color: #0000FF;
    color: #fff;
    border-bottom: 2px solid #000000;
    font-size: 40px;
    padding: 17px 10px;
}

.header .toggle-id {
    margin-left: auto;
    cursor: pointer;
}

.content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 17px 10px;
}

.content p {
    font-size: 40px;
    word-wrap: break-word;
    margin: 0;
}

.content img {
    max-height: 640px;
    width: 100%;
    height: 10000px;
    margin-top: 10px;
    filter: blur(15px);
    cursor: pointer;
    object-fit: contain;
}

.content input[type='checkbox'] {
    display: none;
}

.content input[type='checkbox']:checked + img {
    filter: none;
}

.content label {
    display: inline-block;
}

.content .video-container {
    width: 640px;
    height: 360px;
    max-width: 100vw;
    background: #000;
}

.content .video-container iframe {
    width: 640px;
    height: 360px;
}

.id {
    display: none;
    font-size: 40px;
    color: #000;
    padding: 17px 10px;
    border-bottom: 2px solid #000;
}

.new_message {
    margin: 0;
    padding: 0;
    left: 0;
    right: 0;
    height: 60px;
    position: absolute;
    box-sizing: border-box;
    top: 748px;
    max-width: 100vw;
  }

  .header2 {
    background-color: #0000FF;
    color: #fff;
    border: solid 2px #000;
    font-size: 40px;
    padding: 17px 10px;
    height: 60px;
  }

  .i {
    font-size: 40px;
    color: #000;
    padding: 17px 10px;
    border-top: 2px solid #000;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    box-sizing: border-box;
    height: 96px;
  }

.hidden {
    display: none;
}

.popup {
    background: #f1f1f1;
    font-size: 84px;
    position: fixed;
    text-align: center;
    inset: 0;
    z-index: 9999;
}

#close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    font-size: 140px;
}

.menu-item {
    margin: 20px;
    cursor: pointer;
}