.pdf4m.wrap {
    background-color: #f4f4f4;
    padding: 20px;
    border-radius: 5px;
    text-align: center;
}
.pdf4m  h2 {
    color: #333;
    font-size: 24px;
    margin-bottom: 10px;
}
.pdf4m  h3 {
    color: #333;
    font-size: 18px;
    margin-bottom: 10px;
}
.pdf4m .form{
    text-align: left;
    margin: auto;
    width: 250px;
    background-color: #fff;
    padding: 15px;
    margin-top: 15px;
    border-radius: 7px;
}

.pdf4m .form .input-control{
    display: block;
    font-weight: normal;
    padding-top: 5px;
}
.pdf4m .form span{
    font-size: 16px;
    padding-left: 7px;
}
.pdf4m .form input,
.pdf4m .form select{
    width: 100%;
}
.pdf4m .form label{
    display: block;
    margin-top: 10px;
    margin-bottom: 10px;
    padding-bottom: 7px;
    font-weight: bold;
    padding-left: 7px;
    padding-right: 7px;
}
.pdf4m  p {
    color: #666;
    font-size: 16px;
}

.pdf4m .btn{
    font-size: 14px;
    color: #fff;
    background-color: #4CAF50;
    padding: 10px 30px;
    border: 2px solid #4CAF50;
    box-shadow: rgb(0, 0, 0) 0px 0px 0px 0px;
    border-radius: 50px;
    margin: auto;
    margin-top: 15px;
    margin-bottom: 45px;
    transition : 800ms;
    transform: translateY(0);
    display: flex;
    flex-direction: row;
    align-items: center;
    cursor: pointer;
}

.pdf4m .btn:hover{
    transition : 800ms;
    padding: 10px 50px;
    transform : translateY(-0px);
    background-color: #fff;
    color: #4CAF50;
    border: solid 2px #4CAF50;
}
.pdf4m .btn:disabled{
    visibility: hidden;
}
.pdf4m .list-fonts{
    display: none;
    width: 290px;
    height: 200px;
    resize: none;
    background: #2c2c2c;
    border: #222;
    color: #f2f2f2;
    padding: 15px;
    margin: auto;
}

.pdf4m .progress-bar {
    width: 50%;
    background-color: #e3e3e3;
    border-radius: 4px;
    height: 10px;
    margin: 15px auto 15px auto;
    display: none;
}

.pdf4m .progress-bar-fill {
    background-color: #4CAF50;
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s ease;
}