.question {
    width: 95%;
    border-width: 0;
    border-radius: 6px;
    padding: 6px!important;
    margin-bottom: 0.5rem!important;
}

.show_key {
    border: 1px dashed #bbb;
    padding: 7px;
    margin: 4px 0 12px 0;
    border-radius: 6px;
    width: 95%;
}
.cust_btn {
    display: inline-block;
    font-weight: 400;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    user-select: none;
    border: 1px solid transparent;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: 0.25rem;
    transition: color .15s ease-in-out,background-color .15s ease-in-out,border-color .15s ease-in-out,box-shadow .15s ease-in-out;
    cursor: pointer;
}
.cust_btn1 {
    color: #fff;
    background-color: #007bff;
    border-color: #007bff;
}

.cust_btn1:hover {
    color: #fff;
    background-color: #0069d9;
    border-color: #0062cc;
}

.cust_btn2 {
    color: #fff;
    background-color: #119c04;
    border-color: #119c04;
}

.cust_btn2:hover {
    color: #fff;
    background-color: #218838;
    border-color: #1e7e34;
}

.green {
    color: green!important;
    border-color: green!important;
}

.red {
    color: red!important;
    border-color: red!important;
}

.isempty {
    font-size: 0.8em;
    color: red;
    display: none;
    margin-top: -10px;
}