Answers for "before cross arrow css"

arrow left css

.arrow-left {
  width: 0; 
  height: 0; 
  border-top: 60px solid transparent;
  border-bottom: 60px solid transparent; 
  border-right: 60px solid blue; 
}

css chevron arrow

:before{
    position: relative;
    /* top: 3pt; Uncomment this to lower the icons as requested in comments*/
    content: "";
    display: inline-block;
    /* By using an em scale, the arrows will size with the font */
    width: 0.4em;
    height: 0.4em;
    border-right: 0.2em solid black;
    border-top: 0.2em solid black;
    transform: rotate(45deg);
    margin-right: 0.5em;
    }