.form-1
{
    width: 80%;
    margin-left: 10%;
    border-radius: 10px;
    margin-top: -15px;
    border: 2px solid black;
    font-size: 18px;
}

.b1
{
    background-color: #0D47A1;
    color: white;
    font-size: 18px;
    border-radius: 5px;
    display: inline-block;
    height: 30px;
    width: 80px;
    margin-bottom: 2%;
    border: 2px solid #0D47A1;
    font-weight: bold;
}
.b2
{
    margin-top: 12%;
    background-color: brown;
    margin-left: 20%;
    color: white;
    font-size: 18px;
    border-radius: 5px;
    display: inline-block;
    height: 30px;
    width: 80px;
    margin-bottom: 2%;
    border: 2px solid brown;
    font-weight: bold;

}
.B
{
    text-align: center;

}

.in_1
{
    margin-top: 5%;
    margin-left: 26%;
}
.in
{

    border-radius: 5px;
    height: 100px;
    width: 70%;
    margin-top: 2%;
}
.file
{
    width: 40%;
    height: 50px;
    margin-top: 4%;
    margin-left: 26%;
    position: relative;

}
.put2
{
    position: absolute;
    top: 0;
    left: 0;
    z-index: 999;
    margin-top: 40px;
    display: none;
}
.input
{
    position: relative;
    margin-top: -11px;
    width: 18%;
    margin-left: 26%;

}

.i1
{
    position: absolute;
    top: 0;
    left: 0;
    font-size: 16px;
    border-radius: 5px;
    margin-left: 70px;
    width: 240%;
    height: 50px;
}
.i2 {
    position: absolute;
    top: 0;
    left: 0;
    font-size: 16px;
    border-radius: 5px;
    height: 50px;

}
.container1
{
    overflow: hidden;
    margin-left: 10%;
    margin-top: 3%;

}
.box {
    margin-left: 30px;
    width: 150px;
    height: 30px;
    text-align: center;
    line-height: 30px;
    font-weight: bold;
    float: left;
    border-radius: 10px;
    border: 2px solid black;
    background-color: white;

}
#selected,#selected1
{
    background-color: lightskyblue;
}
.ul-1
{
    font-size: 18px;
}
.node-1
{
    width: 80%;
    border: 2px solid black;
    margin-left: 10%;
    margin-top: -15px;
    border-radius: 10px;
}
.li-1
{
    margin-top: 15px;
}