.container2 {
    max-width: 450px;
    padding-top: 30px;
    padding-bottom: 30px;
    margin-top: 1vh;
    height: 50vh; 
    background: #fff;
    margin-left: auto;
    margin-right: auto;
}


.form-group .input-icon {
    position: absolute;
    bottom: 3px;
    padding-left: 7px;
}

.form-group {
    float: left;
    width: 100%;
    position: relative;
}
.login-container2 {
    background-color: #fff;
    padding: 20px;
}
button.btn-ex {
    background-color: rgb(255,255,255);
    color: rgb(97,97,97);
    border: 1px solid #ced4da;
    font-weight: bold;
}
.btn-login {
    margin-top: 10px;
    width: 150px;
    margin-left: 0px;
}
button:not(.disabled):hover {
    background-color: #3C8CC8;
    color: white !important;
}

.form-control[readonly]:not(:disabled) {
    background-color: white;
}
/* ローディング中 */
#loading {
    position: fixed;
    width: 100%;
    height: 100%;
    background: #222;
    cursor: wait;
    opacity: 0.8;
    top: 0;
    left: 0;
    z-index: 20000;
}

.waiting {
    position: absolute;
    top: 50%;
    left: 50%;
    width: auto;
    color: white;
}