header {
    position: relative;
    display: block;
}


#main {
    max-width: 1000px;
    margin: auto;
    padding-top: 300px;
    background-color: white;
    box-shadow: 0 0 8px black;
}

#a1 {
    padding-top: 30px;
    width: 550px;
    /*height: 500px;*/
    margin: auto;
    /*background-color: blueviolet;*/
    /*padding: 50px;*/
    /*padding-bottom: 20px;*/
}

#main_anim {
    margin: 10px 25px;
    background-color: #fafafa;
    box-shadow: 0 0 8px black;
    
    width: 500px;
    height: 500px;
}

#a1 form {
    /*display: block;*/
    /*margin-left: 50px;*/
    padding: 10px;
    padding-left: 50px;
    /*background-color: aliceblue;*/
}

#p_time {
    /*display: block;*/
    width: 400px;;
    /*margin: auto;*/
}

#a1 input[type=number] {
    text-align: center;
    padding: 2px;
    /*width: 4em;*/
}

#a1 input[type=button], #a1 input[type=reset] {
    text-align: center;
    padding: 5px;
}

#a1 input {
    margin-right: 20px;
    margin-bottom: 10px;
}

h2 {
    text-align: center;
    margin: 4px;
    font-size: 32pt;
}

p {
    margin: 8px 40px;
    margin-bottom: 30px;
    font-size: 16pt;
}

#p_des {
    margin: auto;
    
    width: 500px;
    height: 500px;
    
    background-color: #e7e7e7;
    box-shadow: 0 0 8px black;
}