.form-control {
    display: block;
    width: 100%;
    height: 34px;
    padding: 6px 12px;
    font-size: 14px;
    line-height: 1.42857143;
    color: #555;
    background-color: #fff;
    background-image: none;
    border: 1px solid #ccc;
    border-radius: 4px;
    -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075);
    box-shadow: inset 0 1px 1px rgba(0,0,0,.075);
    -webkit-transition: border-color ease-in-out .15s,-webkit-box-shadow ease-in-out .15s;
    -o-transition: border-color ease-in-out .15s,box-shadow ease-in-out .15s;
    transition: border-color ease-in-out .15s,box-shadow ease-in-out .15s;
}

.input-group {
    position: relative;
    display: inline-table;
    border-collapse: separate;
    vertical-align: middle;
}

.input-group .form-control {
    position: relative;
    z-index: 2;
    float: left;
    width: 100%;
    margin-bottom: 0;
}

.input-group-btn {
    position: relative;
    font-size: 0;
    white-space: nowrap;
}

.input-group-addon, .input-group-btn {
    width: 1%;
    white-space: nowrap;
    vertical-align: middle;
}

.input-group .input-group-addon,
.input-group .input-group-btn {
    width: auto;
}

.input-group .form-control:first-child,
.input-group-addon:first-child,
.input-group-btn:first-child>.btn,
.input-group-btn:first-child>.brand-button,
.input-group-btn:first-child>.btn-group>.btn,
.input-group-btn:first-child>.dropdown-toggle,
.input-group-btn:last-child>.btn-group:not(:last-child)>.btn,
.input-group-btn:last-child>.btn:not(:last-child):not(.dropdown-toggle) {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.input-group .form-control:not(:first-child):not(:last-child),
.input-group-addon:not(:first-child):not(:last-child),
.input-group-btn:not(:first-child):not(:last-child) {
    border-radius: 0;
}

.input-group .form-control:last-child,
.input-group-addon:last-child,
.input-group-btn:last-child > .btn,
.input-group-btn:last-child > .brand-button,
.input-group-btn:last-child > .btn-group > .btn,
.input-group-btn:last-child > .dropdown-toggle,
.input-group-btn:first-child > .btn:not(:first-child),
.input-group-btn:first-child > .btn-group:not(:first-child) > .btn {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.input-group-lg>.form-control,
.input-group-lg>.input-group-addon,
.input-group-lg>.input-group-btn>.btn {
    height: 46px;
    padding: 10px 16px;
    font-size: 18px;
    line-height: 1.3333333;
    border-radius: 6px;
}

.input-group-btn .brand-button {
    height: 44px;
    width: 72px;
}

.input-group-addon {
    padding: 6px 12px;
    font-size: 14px;
    font-weight: 400;
    line-height: 1;
    color: #555;
    text-align: center;
    background-color: #eee;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.input-group-addon,
.input-group-btn {
    width: 1%;
    white-space: nowrap;
    vertical-align: middle;
}

.input-group .form-control,
.input-group-addon,
.input-group-btn {
    display: table-cell;
}