styles.css

@import url(https://fonts.googleapis.com/css?family=Raleway:400,300);
html,
#app {
    height: 100%;
}

body {
    margin: 0;
    padding: 0;
    border: 0;
    height: 100%;
    max-height: 100%;
    position: relative;
}

#toolbar {
    float: left;
    width: 80px;
    height: 100%;
    background-color: #30414D;
    color: #767676;
    padding: 35px 25px 25px 25px;
}

#notes-list {
    float: left;
    width: 300px;
    height: 100%;
    background-color: #F5F5F5;
    font-family: 'Raleway', sans-serif;
    font-weight: 400;
}

#list-header {
    padding: 5px 25px 25px 25px;
}

#list-header h2 {
    font-weight: 300;
    text-transform: uppercase;
    text-align: center;
    font-size: 22px;
    padding-bottom: 8px;
}

#notes-list .container {
    height: calc(100% - 137px);
    max-height: calc(100% - 137px);
    overflow: auto;
    width: 100%;
    padding: 0;
}

#notes-list .container .list-group-item {
    border: 0;
    border-radius: 0;
}

.list-group-item-heading {
    font-weight: 300;
    font-size: 15px;
}

#note-editor {
    height: 100%;
    margin-left: 380px;
}

#note-editor .input-title {
    border: 0;
    border-radius: 0;
}

#note-editor textarea {
    height: calc(100% - 34px);
    max-height: calc(100% - 34px);
    border: 0;
    border-radius: 0;
    width: 50%;
    float: left;
    border: none;
    border-right: 1px solid #ccc;
    resize: none;
    outline: none;
    background-color: #f6f6f6;
    font-size: 14px;
    font-family: 'Monaco', courier, monospace;
    padding: 20px;
}

#note-editor .notes-html {
    display: inline-block;
    vertical-align: top;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    padding: 0 20px;
    width: 50%;
    float: left;
    height: calc(100% - 34px);
    max-height: calc(100% - 34px);
    overflow-y: scroll;
}

#toolbar i {
    font-size: 30px;
    margin-bottom: 35px;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.5s ease;
}

#toolbar i:hover {
    opacity: 1;
}

.starred {
    color: #F7AE4F;
}

.logoicon {
    display: inline-block;
    width: 56px;
    height: 56px;
    margin-left: -13px;
    overflow: hidden;
    border-radius: 100px;
}

.logoicon img {
    width: 100%;
}