.field-custom-large-text_wrapper {
    overflow: hidden;
    font-family: 'Source Code Pro', monospace;
    font-size: 12px;
    /*background: rgb(35, 45, 56);*/
    padding: 10px;
    border-radius: 10px;
    border: 1px solid #222;
    background-color: rgb(34, 34, 34);
    color: rgb(238, 238, 238);
}

.field-custom-large-text_textboxHeader {
    font-family: 'Source Code Pro', monospace;
    font-size: 12px;
    color: #fff;
    background: rgb(34, 34, 34);
    line-height: 24px;
    width: 48%;
    float: left;
    height: 24px;
    border: none;
    padding-left: 3px;
}

.field-custom-large-text_textbox {
    font-family: 'Source Code Pro', monospace;
    font-size: 12px;
    width: 100%;
    height: calc(100% - 24px);
    border: none;
    outline: none;
    border-top: 1px solid red;
}

.field-custom-large-text_textboxHeaderFind {
    cursor: pointer;
    float: right;
    height: 12px;
    width: 48%;
    text-align: right;
    background: none;
}