main {
    margin: 10px auto;
    width: 55%;
    height: 500px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 0 3px 0 rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
}

.noticediv {
    width: 70%;
    height: 96%;
}

.notice {
    width: calc( 100% - 15px );
    height: 100%;
    margin: 0 5px 0 10px;
    /* background-color: yellow; */
    /* background-color: rgba(240, 240, 240, 0.2); */
    /* box-shadow: inset 0 0 3px 0 rgba(0, 0, 0, 0.2); */
    border-radius: 10px;
    overflow-y: auto;
}

.noticepage {
    width: 100%;
    min-height: 100%;
    /* background-color: blue; */
    border-radius: 10px;
}

.noticetitlediv {
    width: calc( 100% - 20px );
    min-height: 50px;
    /* background-color: red; */
    margin: 0 auto;
    display: flex;
    align-items: center;
    /* justify-content: center; */
    border-bottom: 1px solid rgba(0, 0, 0, 0.2);
}

.noticetitlediv h2 {
    margin: 0;
}

.noticecontent {
    width: calc( 100% - 20px);
    min-height: calc( 100% - 50px );
    padding: 0 10px;
    margin: 10px 0 0 0;
}

.menubtndiv {
    width: 30%;
    height: 96%;
    /* background-color: beige; */
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
}

.menubtndiv1 {
    width: calc( 100% );
    height: 100%;
}

.menubtn {
    width: calc( 100% -5px);
    height: calc( ( 100% - 30px ) / 4 );
    background-color: white;
    margin: 0 10px 0 5px;
    border-radius: 10px;
    /* box-shadow: 0 0 3px 0 rgba(0, 0, 0, 0.2); */
    position: relative;
}

.margin1 {
    margin: 0 10px 10px 5px;
}

.menubtnwhite {
    width: 0px;
    height: 100%;
    border-radius: 10px;
    background-color: rgb(204, 204, 204, 0.2);
    position: absolute;
}

.menubtn:hover .menubtnwhite {
    width: 100%;
    transition: width 0.4s;
}

.menubtn-inside {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
}

.menutitle {
    max-width: 96%;
    height: 96%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.arrow-div {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.arrow-div img {
    width: 80%;
    height: 80%;
}