#tb{
   display: flex;
   display: -webkit-flex;
   justify-content: center;
   flex-wrap: wrap;
   column-gap:20px;
   row-gap:20px;
   width: auto;
   height: auto;
   overflow: hidden;
   margin: auto;
}
@media (max-width:767px){
    .tb{
        grid-template-columns:auto; 
    }
}
a.tb_tb{
    display: block;
    padding: 20px;
    width: auto;
    height: auto;
    overflow: hidden;
    text-align: center;
    border-radius: 10px;
}
a.tb_tb:hover{
    background-color: #f5f5f5;
}
.tb_ico{
    width: auto;
    height: auto;
    overflow: hidden;
    display: block;
    font-size: 2rem;
}
.title{
    font-size: 1.5rem;
    font-weight: bold;
    width: auto;
    height: auto;
    overflow: hidden;
}
.miaoshu{
    width: auto;
    height: auto;
    overflow: hidden;
    display: block;
    margin-top: 10px;
}
.tool-input{
    display: block;
    width: 100%;
    height: 40px;
    border: 1px solid #ddd;
}
#bt_save{
    display: block;
    width: 100%;
    height: 50px;
    line-height: 50px;
    overflow: hidden;
    background-color: var(--back_color);
    color: var(--fore_color);
    padding-left: 20px;
    padding-right: 20px;
    border: none;
    border-radius: 4px;
}
#bt_save:hover{
    background-color: var(--hover_color);
}
.tb_tbody{
    margin-top: 10px;
    margin-bottom: 10px;
}
.tb_miaoshu ul,.tb_miaoshu ol{
    margin: auto;
    padding: 0px;
    list-style-position: inside;
}