.header {
    font-family: Helvetica Neue, Helvetica, PingFang SC, Hiragino Sans GB, Microsoft YaHei, Noto Sans CJK SC, WenQuanYi Micro Hei, Arial,sans-serif;
    overflow: hidden;
    width: 100%;
    background-color: white;
    height: 55px;
    background-image: url("../img/header.png");
    background-repeat: no-repeat;
    background-position: 5%;
    position: sticky;
    top: 0px;
    left: 0px;
    z-index: 10;
}

.nav {
    overflow: hidden;
    width: 100%;
    background-color: #1379da;
    position: sticky;
    top: 55px;
    left: 0px;
    height: 25px;
    z-index: 10;
}

.nav button {
    font-family: Helvetica Neue, Helvetica, PingFang SC, Hiragino Sans GB, Microsoft YaHei, Noto Sans CJK SC, WenQuanYi Micro Hei, Arial,sans-serif;
    background-color: inherit;
    color: white;
    height: 25px;
    float: none;
    border: none;
    outline: none;
    cursor: pointer;
    margin: auto 50px;
    transition: 0.3s;
}

.nav button:hover {
    /* background-color: #ddd; */
    color: rgb(0, 183, 255);
}

#divframe {
    align-content: center;
    float: none;
}

#txt {
    max-width: 550px;
    float: none;
    padding: 0 16px;
    margin: auto;
}

#g, #r {
    cursor: default;
    margin: auto 50px;
}

.questionGroup {
    margin-bottom: 30px;
}

.question {
    font-size: 20;
    margin: 10px;
    padding: 10px;
    cursor: default;
}

.inputGroup {
    background-color: #fff;
    display: block;
    margin: 10px 0;
    position: relative;
}

.inputGroup label {
    padding: 12px 30px;

    display: block;
    text-align: left;
    color: #3C454C;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

input {
    width: 32px;
    height: 32px;
    order: 1;
    z-index: 2;
    position: absolute;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    visibility: hidden;
  }

body {
    background-color: #D1D7DC;

}

.tab {
    overflow: hidden;
    width: 100%;
    border: 1px solid #ccc;
    background-color: #f1f1f1;
    position: fixed;
    top: 0px;
    left: 0px;
    z-index: 10;
}

.tab button {
    background-color: inherit;
    float: none;
    border: none;
    outline: none;
    cursor: pointer;
    padding: 14px 16px;
    transition: 0.3s;
}

.tab button:hover {
    background-color: #ddd;
}

.tab button.active {
    background-color: #ccc;
}

.tabcontent {
    display: none;
    padding: 6px 12px;
    border: 1px solid #ccc;
    border-top: none;
}

#g {
    display: block;
    position: relative;

    float: left;
    color: rgb(1, 172, 29);
}

#r {
    display: block;
    float: left;
    color: rgb(255, 0, 0);
}

div.button {
    text-align: center;
    margin: 100px 100px;
}

.tablink {
    width: 100%;
    height: 50px;
}