*{
    margin: 0px;
}

body{
    overflow: hidden;
}

.main {
    display: flex;
    width: 100%;
    height: 100vh;
    border: 5px solid;
    flex-direction: row;
}

.menu {
    display: flex;
    width: 400px;
    border-right: 1px solid;
    flex-direction: column;
}

.content {
    display: flex;
    flex: 1;
    border: 1px solid red;
    flex-direction: column;
}

.user_body {
    display: flex;
    height: 90px;
    border: 1px solid;
    flex-direction: row;
}

.user_img {
    display: flex;
    width: 100px;
    height: inherit;
    border: 1px solid;
}

.user_info {
    display: flex;
    width: 100%;
    flex-direction: column;
}

.messging {
    display: flex;
    flex: 1;
}

.message {
    display: flex;
    height: 70px;
    border: 2px solid;
}

button.msg_but {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 150px;
}

textarea#msg_text {
    resize: none;
    width: 100%;
    display: flex;
    padding: 10px;
    box-sizing: content-box;
}

.user_name, .user_text {
    padding: 15px;
    box-sizing: content-box;
}