.main-container {
width: 100%;
min-width: 1340px;
/*padding-top: 50px;*/
}
.left-area {
position: fixed;
width: 240px;
background-color: #202024;
top: 50px;
bottom: 0;
left: 0;
overflow-y: auto;
}
.left-area .channel-wrap {
}
.left-area .channel-wrap .channel-header {
display: flex;
flex-wrap: wrap;
justify-content: space-between;
align-items: center;
padding: 10px;
}
.left-area .channel-wrap .channel-header h3 {
font-size: 15px;
}
.left-area .channel-wrap .channel-header .icon-arrow {
display: inline-block;
width: 30px;
height: 30px;
background-color: #ffffff;
}
.left-area .channel-wrap .channel-body {
}
.left-area .channel-wrap .channel-body ul {
}
.left-area .channel-wrap .channel-body li {
}
.left-area .channel-wrap .channel-body a {
display: flex;
flex-wrap: wrap;
align-items: flex-start;
padding: 5px 10px;
}
.left-area .channel-wrap .channel-body img {
width: 30px;
height: 30px;
border-radius: 50%;
}
.left-area .channel-wrap .channel-body .txt-wrap {
width: 110px;
margin-left: 10px;
}
.left-area .channel-wrap .channel-body .txt-wrap h4 {
font-size: 13px;
}
.left-area .channel-wrap .channel-body .txt-wrap .source {
font-size: 12px;
color: grey;
}
.left-area .channel-wrap .channel-body .count {
display: block;
width: 53px;
font-size: 12px;
}
.left-area .channel-wrap .channel-body .count:before {
content: '';
position: relative;
display: inline-block;
width: 10px;
height: 10px;
background-color: red;
border-radius: 50%;
margin-right: 5px;
top: 1px;
}
.left-area .join-wrap {
margin: 10px;
}
.left-area .join-wrap .txt-wrap {
background-color: #18181a;
padding: 20px;
}
.left-area .join-wrap .txt-wrap h2 {
font-size: 24px;
}
.left-area .join-wrap .txt-wrap h2 span {
}
.left-area .join-wrap .txt-wrap p {
margin-top: 10px;
font-size: 13px;
}
.left-area .join-wrap .txt-wrap .btn-purple {
width: 53px;
height: 30px;
border-radius: 5px;
text-align: center;
line-height: 30px;
font-size: 12px;
margin-top: 10px;
}
.left-area .info-wrap {
font-size: 12px;
margin: 0 10px 10px 10px;
}
.left-area .info-wrap p {
color: grey;
}
.left-area .info-wrap ul {
display: flex;
flex-wrap: wrap;
align-items: center;
margin-top: 10px;
}
.left-area .info-wrap li {
}
.left-area .info-wrap li a {
color: grey;
}
.left-area .info-wrap li a:after {
content: '';
position: relative;
display: inline-block;
width: 2px;
height: 10px;
background-color: grey;
margin: 0 5px;
}
.left-area .info-wrap li:last-child a:after {
content: none;
}

.png)
💡 position: fixed;
position: fixed; 를 사용해서 height를 사용하지 않고 top bottom으로 사이즈 조절 가능
전체 full size를 만들수 있다.