input.sheet-tab1:not(:checked) ~ .sheet-tab1,
input.sheet-tab2:not(:checked) ~ .sheet-tab2,
input.sheet-tab3:not(:checked) ~ .sheet-tab3,
input.sheet-tab4:not(:checked) ~ .sheet-tab4,
input.sheet-tab5:not(:checked) ~ .sheet-tab5,
input.sheet-tab6:not(:checked) ~ .sheet-tab6 {
    display: none;
}

input.sheet-tab {
    width: calc(20% - 4px);
    max-width: 150px;
    height: 20px;
    
    outline: none !important;
    position: relative;
    cursor: pointer;
    z-index: 1;
}

input.sheet-tab1 {
    margin-left: 1px;
}

input.sheet-tab::before {
    content: attr(title);
    display: inline-block;

    background: #fff;
    border: solid 1px #a8a8a8;
    border-top-left-radius: 4px;
    border-top-right-radius: 4px;

    font-size: 14px;
    font-weight: bold;
    text-align: center;
    
    width: 100%;
    height: 20px;
}

input.sheet-tab:checked::before {
    border-bottom-color: white;
}

.sheet-tab-br {
    border-bottom: 1px solid #a8a8a8;
    margin-bottom: 5px;
    margin-top: 1px;
}

input.sheet-text_01 {
    width: 50px;
    height: 24px;
}

input.sheet-text_02 {
    width: 150px;
    height: 25px;
}
h1.sheet-main_title {
    font-family:times new roman;
    font-size: 5em;
    font-weight: bold;
    text-align: center;
}