.form-group {
    margin-bottom: 1rem;
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control::-ms-expand {
    background-color: transparent;
    border: 0;
}

.form-control:focus {
    color: #495057;
    background-color: #fff;
    border-color: #80bdff;
    outline: 0;
    box-shadow: 0 0 0 0.1rem rgba(0, 51, 76, 0.25);
}

.form-control::-webkit-input-placeholder {
    color: #6c757d;
    opacity: 1;
}

.form-control::-moz-placeholder {
    color: #6c757d;
    opacity: 1;
}

.form-control:-ms-input-placeholder {
    color: #6c757d;
    opacity: 1;
}

.form-control::-ms-input-placeholder {
    color: #6c757d;
    opacity: 1;
}

.form-control::placeholder {
    color: #6c757d;
    opacity: 1;
}

.form-control:disabled, .form-control[readonly] {
    background-color: #e9ecef;
    opacity: 1;
}

select.form-control:not([size]):not([multiple]) {
    height: calc(2.25rem + 2px);
}

select.form-control:focus::-ms-value {
    color: #495057;
    background-color: #fff;
}

.form-control-file,
.form-control-range {
    display: block;
    width: 100%;
}

.btn {
    display: inline-block;
    font-weight: 400;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    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 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    cursor:pointer;
}