h1, h2, h3, h4, h5, h6, p, a, button {
    margin: 0;
    padding: 0;
}


.form_content {
    text-align: left;
    margin-left: 20px;
    margin-top: 10%;
    padding-top: 40px;
    padding-left: 10px;
    padding-right: 10px;
    max-width: 300px;
}

.form-error {
    margin: 5px;
    color: red;
    text-align: center;
}

.chkbox {
    margin: 10px;
    margin-left: 0px;
}

.test_chk_group {
    font-size: 15px;
    padding: 4px;
    
    margin-top: 5px;
    margin-bottom: 15px;
    border-radius: 5px;
    border: solid #dddddd 1px;
}

.center {
    display: flex;
    justify-content:space-around;
}

.header {
    display: flex;
    height: 80px;
    justify-content: space-between;
}

.left-side {
    max-width: 200px;
    
}.left-side a{
    display:block;
    margin: 5px;
}
.right-side {
    min-height: 100%;
    margin: 0px 5px;
    padding: 5px;
    padding-top: 50px;
    width: 150px;
    display:flex;
    /* background: #8e8e9b;
    border: solid black 0.5px;
    border-radius: 3px; */
}

.content {
    width: 900px;
}
.article {
    max-width: 700px;
    display: block;
}

.article-name {
    font-size: 30px;
    margin-bottom: 10px;
}

.article-description {
    font-size: 20px;
    margin: 10px 0px;
}

.notify {
    min-width: 300px;
    max-width: 600px;
    min-height: 100px;
    opacity: .8;
    background: #ccd4df;
    color: #06455e;
    position: fixed;
    bottom: 10px;
    left: 10px;
    visibility: hidden;
    padding: 25px 25px;
    margin-left: 10px;
    border-radius: 10px;
    z-index: 0;
    font-size: large;
}

@media screen and (max-width: 900px) {
    .header{
        display: none;
    }
    
    .left-side {
        display: none;
    }
    
    .right-side {
        display: none;
    }
    
}

@media screen and (max-width: 1200px) {
    .header{
        align-items: left;
    }
    
    .center{
        justify-content:left;
        display: flex;
        align-items: start;
    }
}